WO2007123342A1 - The linear infiltration system functioning as a storm sewer - Google Patents
The linear infiltration system functioning as a storm sewer Download PDFInfo
- Publication number
- WO2007123342A1 WO2007123342A1 PCT/KR2007/001944 KR2007001944W WO2007123342A1 WO 2007123342 A1 WO2007123342 A1 WO 2007123342A1 KR 2007001944 W KR2007001944 W KR 2007001944W WO 2007123342 A1 WO2007123342 A1 WO 2007123342A1
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- WIPO (PCT)
- Prior art keywords
- infiltration
- rainwater
- holes
- initial rainwater
- infiltration part
- Prior art date
Links
- 230000008595 infiltration Effects 0.000 title claims abstract description 347
- 238000001764 infiltration Methods 0.000 title claims abstract description 347
- 238000005192 partition Methods 0.000 claims description 37
- 238000003860 storage Methods 0.000 claims description 10
- 238000000638 solvent extraction Methods 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 3
- 230000010485 coping Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
Definitions
- the present invention relates to a linear infiltration system functioning as a storm sewer, which can treat and store initial rainwater, and more particularly, to a linear infiltration system functioning as a storm sewer, which can allow infiltration of rainwater even in a small area in the reality that it is difficult to secure a space for infiltrating rainwater because of an overcrowded development and a rise of land price of cities, and purify the initial rainwater from pollutants.
- Background Art
- a storm sewer system is formed in a direction that a storm sewer is buried under the ground and a detention reservoir for flowing out rainwater, which is collected by a storm sewer, to a river is installed at the end part of a river valley.
- a severe load may be applied to a pumping station or other facility.
- the storm sewer system may cause river pollution since rainwater polluted by harmful materials and dusts is stored in the detention reservoir and flows to the river as it is. So, an environmentally friendly rainwater infiltration method to reduce an outflow volume by naturally infiltrating or temporarily storing the rainwater before the rainwater enters the detention reservoir has been proposed.
- the environmentally friendly rainwater infiltration method contributes to secure an ecological earth environment since it infiltrates rainwater after purifying pollutants contained in initial rainwater, and contributes to relieve an urban heat island effect through evapotranspiration or evaporation of rainwater.
- a conventional infiltration system just provides a temporarily storing function and a drip infiltration function of rainwater, but cannot properly cope with a change of rainwater volume, and particularly, is difficult to rapidly discharge and treat rainwater during the localized downfall. Disclosure of Invention Technical Problem
- the present invention has been made to solve the above-mentioned problems occurring in the prior arts, and it is an object of the present invention to provide a linear infiltration system functioning as a storm sewer, which can treat initial rainwater and a localized downfall and store them.
- the present invention provides a linear infiltration system functioning as a storm sewer, which is buried under the ground of the roadside to induce rainwater to allow the rainwater to be infiltrated into the ground, the linear infiltration system comprising: a housing having an upper infiltration part into which rainwater is introduced and a lower infiltration part located under the upper infiltration part for allowing the rainwater introduced into the upper infiltration part to pass therethrough; and a cover plate for covering the upper portion of the housing and having rainwater inflow holes formed on the surface thereof, wherein the lower infiltration part includes: an initial rainwater infiltration part in which filter media are spread; and an overflow infiltration part located adjacent to the initial rainwater infiltration part and rising higher than the initial rainwater infiltration part, wherein connecting infiltration holes are formed on the upper portion of a side or the upper surface of the overflow infiltration part and on the upper surface of the initial rainwater infiltration part, and bottom infiltration holes are formed on the bottom of the initial rainwater infiltration part and the bottom of the overflow
- FIGS. 1 and 2 are conceptual views of a linear infiltration system functioning as a storm sewer according to the present invention.
- FIG. 3 is a view showing an example that the linear infiltration system functioning as the storm sewer is installed on the ground.
- FIG. 4 is a view showing a first preferred embodiment of the linear infiltration system functioning as the storm sewer according to FIG. 1.
- FIG. 5 is a view showing a second preferred embodiment of the linear infiltration system functioning as the storm sewer according to FIG. 1.
- FIGS. 6 to 8 are views showing a preferred embodiment of the linear infiltration system functioning as the storm sewer according to FIG. 2, in a completely assembled state.
- FIGS. 1 and 2 are conceptual views of a linear infiltration system functioning as a storm sewer according to the present invention.
- the linear infiltration system functioning as the storm sewer according to the present invention is buried under the ground of the roadside to induce rainwater to allow the rainwater to be infiltrated into the ground, and provides an infiltration function and a rainwater purification function, and can treat rainwater while properly coping with a volume of rainwater.
- the linear infiltration system includes a housing 100 having a two-stage structure consisting of an upper infiltration part 110 and a lower infiltration part 120, and a cover plate 150 for covering the upper portion of the housing 100.
- the present invention can be directly used on the spot instead of the existing storm sewer since it is designed in the same width as the existing storm sewer (rainwater side gutter, and trench).
- the inner space of the housing 100 is divided into two stages, namely, an upper infiltration part 110 and a lower infiltration part 120.
- the cover plate 150 has rainwater inflow holes 151 formed on the surface thereof, and covers the upper portion of the housing 100 to prevent introduction of foreign matters ( fallen leaves, earth and sand, and so on) contained in the rainwater into the housing 100.
- the cover plate 150 is mounted on the housing 100 in such a manner that the upper portion of the housing 100 has a stepped jaw bent outwardly and the cover plate 150 is mounted at the stepped jaw of the upper portion of the housing 100.
- the cover plate 150 may adopt a grating generally used as a trench lid, and alternatively, may be in the form of a punching plate or a filter. Considering that the present invention is installed on the road, it is preferable that the cover plate 150 must secure rigidity as strong as it can sufficiently endure loads of vehicles or pedestrians.
- the upper infiltration part 110 of the housing 100 is a part, which rainwater passing through the rainwater inflow holes 151 of the cover plate 150 is firstly introduced, and the lower infiltration part 120 is located under the upper infiltration part 110 and passes the rainwater introduced to the upper infiltration part 110 therethrough.
- the lower infiltration part 120 includes connecting infiltration holes 121 for allowing an introduction of the rainwater from the upper infiltration part 110 into the lower infiltration part 120, and bottom infiltration holes 125 for draining the rainwater introduced into the lower infiltration part 120. In this instance, if an area ranging from the upper infiltration part 110 to the connecting infiltration hole 121 of the lower infiltration part 120 is inclined, the rainwater can be naturally flown downwardly to thereby drain the rainwater smoothly.
- the lower infiltration part 120 of the housing 100 is divided into: an initial rainwater infiltration part 120a; and an overflow infiltration part 120b located adjacent to the initial rainwater infiltration part 120a but rising higher than the initial rainwater infiltration part 120a.
- the connecting infiltration holes 121 extending from the upper infiltration part 110 are respectively formed on the upper surface or the upper portion of the side of the overflow infiltration part 120b and the upper surface of the initial rainwater infiltration part 120a
- the bottom infiltration holes 125 are respectively formed on the bottom of the initial rainwater infiltration part 120a and the bottom of the overflow infiltration part 120b.
- FIG. 1 illustrates an example that the connecting infiltration hole 121 is formed on the upper portion of the side of the overflow infiltration part 120b
- FIG. 2 illustrates an example that the connecting infiltration holes 121 are formed on the upper surface of the overflow infiltration part 120b.
- the rainwater introduced into the lower infiltration part 120 after passing through the upper infiltration part 110 and the connecting infiltration holes 121 finally goes out of the housing 100 through the bottom infiltration holes 125, and directly infiltrates into the ground.
- the initial rainwater infiltration part 120a of the lower infiltration part 120 is a part to which the initial rainwater passing through the upper infiltration part 110 is first introduced, and is filled with filter media spread therein to purify the initial rainwater.
- the filter media must provide a function to purify a heavy metal, oil, fine dusts or others, have a particle size ranging from 0mm to 5mm, and be an opened pore type providing the purification function.
- the overflow infiltration part 120b of the lower infiltration part 120 rises higher than the initial rainwater infiltration part 120a and is narrower than the initial rainwater infiltration part 120a.
- Such an overflow infiltration part 120b is prepared to rapidly treat a rainwater volume exceeding an available treatment volume of the initial rainwater infiltration part 120a in consideration of a situation that a localized downfall occurs within a short time period. In consideration of the above function of the overflow infiltration part 120b, as shown in FIG.
- the rainwater inflow holes 151 of the cover plate 150 must be formed only above the initial rainwater infiltration part 120a to prevent a direct infiltration of the rainwater into the overflow infiltration part 120b (see FIG. 6). The reason is that the connecting infiltration holes 121 may be stopped due to a direct introduction of foreign matters.
- the filter media are spread in the overflow infiltration part 120b to purify the rainwater passing through the overflow infiltration part 120b, but in this instance, it is preferable that the filter media spread in the overflow infiltration part 120b are better in water permeability than those of the initial rainwater infiltration part 120a since the overflow infiltration part 120b is prepared to rapidly treat the rainwater for a heavy volume of the rainfall.
- the present invention can treat the rainwater by stages while properly coping with a change of the volume of the rainwater.
- FIG. 3 illustrates an example that the linear infiltration system functioning as the storm sewer according to the present invention is installed on the ground.
- FIG. 3 (a) illustrates an example that the linear infiltration system of FIG. 1 (the connecting infiltration hole of the overflow infiltration part is formed on the side) is applied
- FIG. 3(b) illustrates an example that the linear infiltration system of FIG. 2 (the connecting infiltration hole of the overflow infiltration part is formed on the upper surface) is applied.
- the rainwater purified after passing through the housing 100 can directly infiltrate into the ground, but it is preferable that a storage box 200 is prepared to temporarily store the rainwater therein before the rainwater infiltrates into the ground.
- the storage box 200 is prepared for a case where the rainwater backflow from the system when infiltration of the ground is low, and so, serves to store rainwater more than a predetermined volume and induce a gradual infiltration into the ground. It is preferable that the storage box 200 has a sufficient water permeability of about 95%.
- a porous hard pan 300 when a porous hard pan 300 is formed under the storage box 200, an infiltration period can be enlarged and an infiltration course can be dispersed due to an irregular formation of pores of the porous hard pan 300.
- a collecting box for continuously storing rainwater can be prepared, and the rainwater stored in the collecting box can be recycled.
- sand-hardening parts 400 formed by spreading sands can be formed on both sides of the upper infiltration part 110, the lower infiltration part 120 and the storage box 200 or the collecting box in order to prevent a deformation of the housing by reducing earth pressure transmitted to the upper infiltration part 110, the lower infiltration part 120 and the storage box 200 or the collecting box.
- FIG. 3 shows a detailed inner space structure of the initial rainwater infiltration part 120a of the lower infiltration part 120 of the housing 100 for showing a method for extending the infiltration course of the rainwater. That is, the infiltration course can be extended by mounting partitions 130 inside the initial rainwater infiltration part 120a.
- FIG. 3 (a) illustrates the infiltration course extended in a horizontal flow
- FIG. 3(b) illustrates the infiltration course extended in a vertical flow.
- the infiltration course of the horizontal flow shown in FIG. 3 (a) is formed in such a way that the partitions 130 are mounted within the initial rainwater infiltration part 120a in the form of a horizontal plate to partition the initial rainwater infiltration part 120a by stages.
- the partitions 130 respectively have partition infiltration holes 131 formed at both end portions thereof alternately, and the bottom infiltration holes 125 are formed on the bottom of the initial rainwater infiltration part 120a spaced apart from the lowermost partition infiltration hole 131.
- the infiltration course of the horizontal flow shown in FIG. 3(b) is formed in such a way that the partitions 130 are mounted within the initial rainwater infiltration part 120a in the form of a vertical wall.
- the partitions 130 respectively have partition infiltration holes 131 formed on the upper portion and the lower portion thereof alternately in a zigzag form, and the bottom infiltration holes 125 are formed on the bottom of the outermost space of the initial rainwater infiltration part 120a.
- the partition infiltration holes 131 must be formed on the partitions 130 mounted in the initial rainwater infiltration part 120a in such a way that the infiltration course extending from the connecting infiltration holes 121 of the initial rainwater infiltration part 120a to the bottom infiltration holes 125 becomes the longest distance to maximize a purification effect through the filter media.
- the filter media of different kinds are spread inside the partitioned spaces of the initial rainwater infiltration part 120a to maximize the purification effect and the infiltration effect.
- the filter media having a heavy metal purifying function is spread in the front section (approximately, the first and second compartments) of the infiltration course, and the filter media having a fine dust filtering function is spread in the rear section (the final compartment) of the infiltration course.
- the present invention is applied in a region where pollution is not severe, such as around a park, the same filter medial can be spread without partitioning the inner space of the initial rainwater infiltration part.
- the partitions 130 for partitioning the inner space of the initial rainwater infiltration part 120a can be mounted in such a way that partitioning box filled with the filter media is inserted and mounted inside the initial rainwater infiltration part 120a in a cartridge type, and in this instance, the connecting infiltration holes 121, the bottom infiltration holes 125 and the partition infiltration holes 131 prepared in the initial rainwater infiltration part 120a must be formed in the partitioning box.
- the partitioning box mounted in the cartridge type is advantageous since it can be easily replaced as occasion demands.
- the upper infiltration part 110 can also extend the infiltration course by mounting a partition in the upper infiltration part 110 (see FIGS. 3(b) and 7). That is, the partition is mounted only in the upper infiltration part 110 located above the initial rainwater infiltration part 120a of the lower infiltration part, so that the upper infiltration part 110 is partitioned into an infiltration entrance part 110b communicating with the connecting infiltration holes 121 of the initial rainwater infiltration part 120a and an earth receiving part 110a, which does not communicate with the connecting infiltration holes 121.
- the partition prepared in the upper infiltration part 110 has partition infiltration holes 131
- the cover plate 150 has the rainwater inflow holes 151 formed only on a portion, which covers the earth receiving part 110a of the upper infiltration part to thereby secure the infiltration course ranging from the earth receiving part 110a to the infiltration entrance part 110b and prevent a direct introduction of foreign matters, such as earth, into the infiltration entrance part 110b.
- the linear infiltration system according to the present invention can be easily completed by using the housing 100 of a unit size. That is, the housing 100 including the upper infiltration part 110 and the lower infiltration part 120 is manufactured in the unit size in an integrated state, and then, a plurality of the housings 100 are continuously arranged and installed in a longitudinal direction, whereby the linear infiltration system functioning as the storm sewer can be easily realized.
- the unit-oriented infiltration system is advantageous in that the workload of construction in the field can be reduced through the factory production so as to enhance economical efficiency of the infiltration system.
- the housing 100 of the unit size is configured in such a way that the initial rainwater infiltration part 120a is longitudinally arranged at the center of the lower infiltration part 120 and the overflow infiltration part 120b are arranged at both ends of the initial rainwater infiltration part 120a.
- the reason is that a continuous arrangement of the housings 100 enables the infiltration system to cope with an overflow of the rainwater since the upper infiltration parts 110 can be continuously arranged when the overflow infiltration part 120b is mounted in contact with the overflow infiltration part 120b of the next housing 100 to thereby rapidly induce the rainwater to a treatment pipe like the conventional storm sewer when the rainwater volume exceeding the available rainwater volume of the lower infiltration part 120 (including the initial rainwater infiltration part and the overflow infiltration part) during the localized downfall.
- FIGS. 4 and 5 illustrate an example of the integrated type housing 100 of the unit size, to which the concept of the linear infiltration system of FIG. 1 (the connecting infiltration hole of the overflow infiltration part is formed on the upper portion of the side) is applied.
- the housing 100 of the unit size is completed by integrating each structure of the housing in a process that the housing is manufactured in a factory.
- FIGS. 4 and 5 a filter net 140 is mounted above the initial rainwater infiltration part 120a.
- the filter net 140 serves to filter the foreign matters ( fallen leaves, earth, and so on) remaining in the upper infiltration part 110.
- the filter net 140 is formed to cover also the connecting infiltration holes 121 of the overflow infiltration part, it can restrain an introduction of the foreign matters into the connecting infiltration holes 121.
- a hand grip is mounted on the filter net 140, a user can easily pull out the filter net 140 and remove the foreign matters.
- FIGS. 6 to 8 illustrate the housing 100 of the unit size including a unit-sized infiltration tub 100a and covers 100b and 100c, to which the concept of the linear infiltration system of FIG. 2 (the connecting infiltration hole of the overflow infiltration part is formed on the upper surface) is applied.
- Each structure of the housing of the unit size can be completed through a simple assembly, and such a sectional housing is advantageous in that its management is easy.
- the unit-sized infiltration tub 100a includes side plates formed in a longitudinal direction, a bottom plate and both end plates formed in a width direction.
- the both end plates are installed inward with a lower height than the both side plates to prepare a central inner space and form a connected portion when a plurality of the unit-sized infiltration tubs 100a are longitudinally arranged and connected with each other in series.
- a connection wing is disposed at an end of the side plate or an end of the bottom plate, so that the unit-sized infiltration tubs 100a are forcedly fit to each other for a tight connection between the unit-sized infiltration tubs 100a.
- the covers 100b and 100c are mounted in such a way as to close the central inner space and the inner space of the connected portion of the unit-sized infiltration tubs 100a arranged and connected with each other in series.
- the central inner spaces and the inner spaces of the connected portions have different heights from each other, and arranged alternately, and the unit-sized infiltration tub 100a is divided into the upper infiltration part 110 and the lower infiltration part 120.
- the linear infiltration system functioning as the storm sewer is completed in the form that the lower infiltration part 120 has the central inner space and the inner space of the connected portion and the upper infiltration part 110 is formed above the covers 100b and 100c.
- the bottom infiltration holes 125 are formed on the bottom plate of the unit- sized infiltration tub 100a, and the connecting infiltration holes 121 are formed on the covers 100b and 100c.
- the connecting infiltration holes 121 may be formed on the cover 100b mounted lower than the other cover and on the end plates of the unit- sized infiltration tub 100a, which rises above the lower cover 100b, whereby the infiltration system can be completed according to the concept of the linear infiltration system of FIG. 1.
- FIGS. 7 and 8 a plurality of the partitions 130 of the vertical wall type are mounted in the central inner space of the unit-sized infiltration tub 100a in such a way as to be mounted lower in height than the end plates, whereby the covers 100b and 100c can be easily mounted in a sectional type.
- the covers are divided into the first cover 100b put on the partitions 130 mounted in the central inner space of the unit-sized infiltration tub 100a and the second cover 100c spreading over both end plates forming the inner space of the connected portion, and in this instance, the first cover 100b is lower than the second cover 100c.
- the first cover 100b is mounted in such a way as to be supported by the partitions 130 while being in internal contact with the central inner space
- the second cover 100c is mounted in such a way as to be supported by the end plates while being in external contact with the inner space of the connected portion.
- the central inner space where the first cover 100b is mounted becomes the initial rainwater infiltration part 120a of the lower infiltration part
- the inner space of the connected portion where the second cover 100c is mounted becomes the overflow infiltration part 120c of the lower infiltration part.
- the connecting infiltration holes 121 formed on the first cover 100b are locally arranged at a portion of the first cover 100b in consideration of the infiltration course.
- a partition is disposed to partition a formation space of the connecting infiltration holes 121 formed on the first cover 100b and to divide the upper infiltration part 100 into the infiltration entrance part 110b and the earth receiving part 110a.
- the partition disposed on the first cover 100b includes the partition infiltration holes 131.
- FIGS. 6 to 8 show a state where two unit-sized infiltration tubs 100a are connected with each other in different directions, but may be connected with each other in the same direction.
- the arrangement direction of the first covers 100b is determined, and a formation position of the connection wing formed on the end of the side plate or the end of the bottom plate of the unit-sized infiltration tub for the forced fitting must be considered.
- the linear infiltration system functioning as the storm sewer provides the following effects.
- the linear infiltration system according to the present invention can allow an easy infiltration of the rainwater since it can be substituted for the storm sewer without changing an installation method of the existing storm sewer and purify the pollutants contained in the initial rainwater, thereby treating and managing rainwater economically.
- the linear infiltration system according to the present invention can secure infiltration of the initial rainwater and properly cope with the overflow during the localized downfall since it includes the upper and lower infiltration parts, the lower infiltration part being divided into at least two infiltration spaces of different heights.
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Abstract
Disclosed therein is a linear infiltration system functioning as a storm sewer, which can treat and store initial rainwater. The linear infiltration system has the upper and lower infiltration parts, wherein the lower infiltration part has at least two infiltration spaces partitioned according to heights, thereby purifying and infiltrating the initial rainwater and properly coping with an overflow during a localized downfall.
Description
Description
THE LINEAR INFILTRATION SYSTEM FUNCTIONING AS A
STORM SEWER
Technical Field
[1] The present invention relates to a linear infiltration system functioning as a storm sewer, which can treat and store initial rainwater, and more particularly, to a linear infiltration system functioning as a storm sewer, which can allow infiltration of rainwater even in a small area in the reality that it is difficult to secure a space for infiltrating rainwater because of an overcrowded development and a rise of land price of cities, and purify the initial rainwater from pollutants. Background Art
[2] According to an increase of imperviousness due to an overcrowded development of cities and an increase of the incidence of a sudden localized-downfall, there is a limit to cope with a flood using sewage pipes and rivers. In the above situation, a storm sewer system attracts attention, which can treat a predetermined part of a flood volume exceeding a discharge capacity of a sewage pipe using the storm sewer to effectively reduce flood damages.
[3] In general, a storm sewer system is formed in a direction that a storm sewer is buried under the ground and a detention reservoir for flowing out rainwater, which is collected by a storm sewer, to a river is installed at the end part of a river valley. However, in case of such a storm sewer system, during the localized downfall, a severe load may be applied to a pumping station or other facility. Besides, the storm sewer system may cause river pollution since rainwater polluted by harmful materials and dusts is stored in the detention reservoir and flows to the river as it is. So, an environmentally friendly rainwater infiltration method to reduce an outflow volume by naturally infiltrating or temporarily storing the rainwater before the rainwater enters the detention reservoir has been proposed.
[4] The environmentally friendly rainwater infiltration method contributes to secure an ecological earth environment since it infiltrates rainwater after purifying pollutants contained in initial rainwater, and contributes to relieve an urban heat island effect through evapotranspiration or evaporation of rainwater. However, a conventional infiltration system just provides a temporarily storing function and a drip infiltration function of rainwater, but cannot properly cope with a change of rainwater volume, and particularly, is difficult to rapidly discharge and treat rainwater during the localized downfall. Disclosure of Invention
Technical Problem
[5] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior arts, and it is an object of the present invention to provide a linear infiltration system functioning as a storm sewer, which can treat initial rainwater and a localized downfall and store them.
[6] It is another object of the present invention to provide a linear infiltration system functioning as a storm sewer, which can allow infiltration of rainwater even in a small area in the reality that it is difficult to secure a space for infiltrating rainwater because of an overcrowded development and a rise of land price of cities, and purify initial rainwater from pollutants.
[7] It is a further object of the present invention to provide a linear infiltration system functioning as a storm sewer, which can be easily assembled and disassembled, thereby providing easiness in manufacturing and management. Technical Solution
[8] To achieve the above objects, the present invention provides a linear infiltration system functioning as a storm sewer, which is buried under the ground of the roadside to induce rainwater to allow the rainwater to be infiltrated into the ground, the linear infiltration system comprising: a housing having an upper infiltration part into which rainwater is introduced and a lower infiltration part located under the upper infiltration part for allowing the rainwater introduced into the upper infiltration part to pass therethrough; and a cover plate for covering the upper portion of the housing and having rainwater inflow holes formed on the surface thereof, wherein the lower infiltration part includes: an initial rainwater infiltration part in which filter media are spread; and an overflow infiltration part located adjacent to the initial rainwater infiltration part and rising higher than the initial rainwater infiltration part, wherein connecting infiltration holes are formed on the upper portion of a side or the upper surface of the overflow infiltration part and on the upper surface of the initial rainwater infiltration part, and bottom infiltration holes are formed on the bottom of the initial rainwater infiltration part and the bottom of the overflow infiltration part, and wherein the rainwater inflow holes of the cover plate are positioned above the initial rainwater infiltration part of the lower infiltration part. Brief Description of the Drawings
[9] FIGS. 1 and 2 are conceptual views of a linear infiltration system functioning as a storm sewer according to the present invention.
[10] FIG. 3 is a view showing an example that the linear infiltration system functioning as the storm sewer is installed on the ground.
[11] FIG. 4 is a view showing a first preferred embodiment of the linear infiltration
system functioning as the storm sewer according to FIG. 1.
[12] FIG. 5 is a view showing a second preferred embodiment of the linear infiltration system functioning as the storm sewer according to FIG. 1.
[13] FIGS. 6 to 8 are views showing a preferred embodiment of the linear infiltration system functioning as the storm sewer according to FIG. 2, in a completely assembled state.
[14] <Explanation of essential reference numerals in drawings>
[15] 100: housing 100a: unit-sized infiltration tub
[16] 100b: first cover 100c: second cover
[17] 110: upper infiltration part 110a: earth receiving part
[18] 110b: infiltration entrance part 120: lower infiltration part
[19] 120a: initial rainwater infiltration part
[20] 120b: overflow infiltration part
[21] 121: connecting infiltration hole 125: bottom infiltration hole
[22] 130: partition 131: partition infiltration hole
[23] 150: cover plate 151: rainwater inflow hole
[24] 200: storage box 300: porous hard pan
[25] 400: sand-hardening parts
Mode for the Invention
[26] Reference will be now made in detail to the preferred embodiment of the present invention with reference to the attached drawings.
[27] FIGS. 1 and 2 are conceptual views of a linear infiltration system functioning as a storm sewer according to the present invention.
[28] The linear infiltration system functioning as the storm sewer according to the present invention is buried under the ground of the roadside to induce rainwater to allow the rainwater to be infiltrated into the ground, and provides an infiltration function and a rainwater purification function, and can treat rainwater while properly coping with a volume of rainwater.
[29] To realize the above functions, the linear infiltration system according to the present invention includes a housing 100 having a two-stage structure consisting of an upper infiltration part 110 and a lower infiltration part 120, and a cover plate 150 for covering the upper portion of the housing 100. Particularly, the present invention can be directly used on the spot instead of the existing storm sewer since it is designed in the same width as the existing storm sewer (rainwater side gutter, and trench).
[30] The inner space of the housing 100 is divided into two stages, namely, an upper infiltration part 110 and a lower infiltration part 120. The cover plate 150 has rainwater inflow holes 151 formed on the surface thereof, and covers the upper portion of the
housing 100 to prevent introduction of foreign matters (fallen leaves, earth and sand, and so on) contained in the rainwater into the housing 100. In the present invention, the cover plate 150 is mounted on the housing 100 in such a manner that the upper portion of the housing 100 has a stepped jaw bent outwardly and the cover plate 150 is mounted at the stepped jaw of the upper portion of the housing 100. The cover plate 150 may adopt a grating generally used as a trench lid, and alternatively, may be in the form of a punching plate or a filter. Considering that the present invention is installed on the road, it is preferable that the cover plate 150 must secure rigidity as strong as it can sufficiently endure loads of vehicles or pedestrians.
[31] The upper infiltration part 110 of the housing 100 is a part, which rainwater passing through the rainwater inflow holes 151 of the cover plate 150 is firstly introduced, and the lower infiltration part 120 is located under the upper infiltration part 110 and passes the rainwater introduced to the upper infiltration part 110 therethrough. The lower infiltration part 120 includes connecting infiltration holes 121 for allowing an introduction of the rainwater from the upper infiltration part 110 into the lower infiltration part 120, and bottom infiltration holes 125 for draining the rainwater introduced into the lower infiltration part 120. In this instance, if an area ranging from the upper infiltration part 110 to the connecting infiltration hole 121 of the lower infiltration part 120 is inclined, the rainwater can be naturally flown downwardly to thereby drain the rainwater smoothly.
[32] The lower infiltration part 120 of the housing 100 is divided into: an initial rainwater infiltration part 120a; and an overflow infiltration part 120b located adjacent to the initial rainwater infiltration part 120a but rising higher than the initial rainwater infiltration part 120a. In this instance, the connecting infiltration holes 121 extending from the upper infiltration part 110 are respectively formed on the upper surface or the upper portion of the side of the overflow infiltration part 120b and the upper surface of the initial rainwater infiltration part 120a, and the bottom infiltration holes 125 are respectively formed on the bottom of the initial rainwater infiltration part 120a and the bottom of the overflow infiltration part 120b. FIG. 1 illustrates an example that the connecting infiltration hole 121 is formed on the upper portion of the side of the overflow infiltration part 120b, and FIG. 2 illustrates an example that the connecting infiltration holes 121 are formed on the upper surface of the overflow infiltration part 120b. The rainwater introduced into the lower infiltration part 120 after passing through the upper infiltration part 110 and the connecting infiltration holes 121 finally goes out of the housing 100 through the bottom infiltration holes 125, and directly infiltrates into the ground.
[33] The initial rainwater infiltration part 120a of the lower infiltration part 120 is a part to which the initial rainwater passing through the upper infiltration part 110 is first
introduced, and is filled with filter media spread therein to purify the initial rainwater. The filter media must provide a function to purify a heavy metal, oil, fine dusts or others, have a particle size ranging from 0mm to 5mm, and be an opened pore type providing the purification function.
[34] The overflow infiltration part 120b of the lower infiltration part 120 rises higher than the initial rainwater infiltration part 120a and is narrower than the initial rainwater infiltration part 120a. Such an overflow infiltration part 120b is prepared to rapidly treat a rainwater volume exceeding an available treatment volume of the initial rainwater infiltration part 120a in consideration of a situation that a localized downfall occurs within a short time period. In consideration of the above function of the overflow infiltration part 120b, as shown in FIG. 2, when the connecting infiltration holes 121 of the overflow infiltration part 120b are formed on the upper surface of the overflow infiltration part 120b, the rainwater inflow holes 151 of the cover plate 150 must be formed only above the initial rainwater infiltration part 120a to prevent a direct infiltration of the rainwater into the overflow infiltration part 120b (see FIG. 6). The reason is that the connecting infiltration holes 121 may be stopped due to a direct introduction of foreign matters. It is preferable that the filter media are spread in the overflow infiltration part 120b to purify the rainwater passing through the overflow infiltration part 120b, but in this instance, it is preferable that the filter media spread in the overflow infiltration part 120b are better in water permeability than those of the initial rainwater infiltration part 120a since the overflow infiltration part 120b is prepared to rapidly treat the rainwater for a heavy volume of the rainfall.
[35] According to the above configuration of the housing 100, the present invention can treat the rainwater by stages while properly coping with a change of the volume of the rainwater.
[36] That is, during the initial rainwater introduction, as shown in FIGS. l(a) and 2(a), since the rainwater is treated through the initial rainwater infiltration part 120a of the lower infiltration part of the housing 100, the rainwater treatment of the first stage is realized. During the heavy volume of the rainfall, as shown in FIGS. l(b) and 2(b), since the rainwater is treated through the overflow infiltration part 120b as well as the initial rainwater infiltration part 120a, the rainwater treatment of the second stage is realized. During the localized downfall, as shown in FIGS. l(c) and FIG. 2(c), since the rainwater is treated through not only the initial rainwater infiltration part 120a and the overflow infiltration part 120b of the lower infiltration part but also a horizontal conveyance of the upper infiltration part 110, the rainwater treatment of the third stage is realized.
[37] FIG. 3 illustrates an example that the linear infiltration system functioning as the storm sewer according to the present invention is installed on the ground. In concrete,
FIG. 3 (a) illustrates an example that the linear infiltration system of FIG. 1 (the connecting infiltration hole of the overflow infiltration part is formed on the side) is applied, and FIG. 3(b) illustrates an example that the linear infiltration system of FIG. 2 (the connecting infiltration hole of the overflow infiltration part is formed on the upper surface) is applied.
[38] The rainwater purified after passing through the housing 100 (the upper infiltration part and the lower infiltration part) can directly infiltrate into the ground, but it is preferable that a storage box 200 is prepared to temporarily store the rainwater therein before the rainwater infiltrates into the ground. The storage box 200 is prepared for a case where the rainwater backflow from the system when infiltration of the ground is low, and so, serves to store rainwater more than a predetermined volume and induce a gradual infiltration into the ground. It is preferable that the storage box 200 has a sufficient water permeability of about 95%. In this instance, when a porous hard pan 300 is formed under the storage box 200, an infiltration period can be enlarged and an infiltration course can be dispersed due to an irregular formation of pores of the porous hard pan 300. According to circumstances, in stead of the storage box 200, a collecting box for continuously storing rainwater can be prepared, and the rainwater stored in the collecting box can be recycled.
[39] In addition, sand-hardening parts 400 formed by spreading sands can be formed on both sides of the upper infiltration part 110, the lower infiltration part 120 and the storage box 200 or the collecting box in order to prevent a deformation of the housing by reducing earth pressure transmitted to the upper infiltration part 110, the lower infiltration part 120 and the storage box 200 or the collecting box.
[40] Meanwhile, FIG. 3 shows a detailed inner space structure of the initial rainwater infiltration part 120a of the lower infiltration part 120 of the housing 100 for showing a method for extending the infiltration course of the rainwater. That is, the infiltration course can be extended by mounting partitions 130 inside the initial rainwater infiltration part 120a. FIG. 3 (a) illustrates the infiltration course extended in a horizontal flow, and FIG. 3(b) illustrates the infiltration course extended in a vertical flow.
[41] The infiltration course of the horizontal flow shown in FIG. 3 (a) is formed in such a way that the partitions 130 are mounted within the initial rainwater infiltration part 120a in the form of a horizontal plate to partition the initial rainwater infiltration part 120a by stages. In this instance, the partitions 130 respectively have partition infiltration holes 131 formed at both end portions thereof alternately, and the bottom infiltration holes 125 are formed on the bottom of the initial rainwater infiltration part 120a spaced apart from the lowermost partition infiltration hole 131.
[42] The infiltration course of the horizontal flow shown in FIG. 3(b) is formed in such a way that the partitions 130 are mounted within the initial rainwater infiltration part
120a in the form of a vertical wall. In this instance, the partitions 130 respectively have partition infiltration holes 131 formed on the upper portion and the lower portion thereof alternately in a zigzag form, and the bottom infiltration holes 125 are formed on the bottom of the outermost space of the initial rainwater infiltration part 120a.
[43] Of course, the partition infiltration holes 131 must be formed on the partitions 130 mounted in the initial rainwater infiltration part 120a in such a way that the infiltration course extending from the connecting infiltration holes 121 of the initial rainwater infiltration part 120a to the bottom infiltration holes 125 becomes the longest distance to maximize a purification effect through the filter media.
[44] Moreover, when the inner space of the initial rainwater infiltration part 120a is partitioned by the partitions 130, it is preferable that the filter media of different kinds are spread inside the partitioned spaces of the initial rainwater infiltration part 120a to maximize the purification effect and the infiltration effect. For instance, if the present invention is applied around a roadway where pollution is severe, the filter media having a heavy metal purifying function is spread in the front section (approximately, the first and second compartments) of the infiltration course, and the filter media having a fine dust filtering function is spread in the rear section (the final compartment) of the infiltration course. Of course, if the present invention is applied in a region where pollution is not severe, such as around a park, the same filter medial can be spread without partitioning the inner space of the initial rainwater infiltration part.
[45] The partitions 130 for partitioning the inner space of the initial rainwater infiltration part 120a can be mounted in such a way that partitioning box filled with the filter media is inserted and mounted inside the initial rainwater infiltration part 120a in a cartridge type, and in this instance, the connecting infiltration holes 121, the bottom infiltration holes 125 and the partition infiltration holes 131 prepared in the initial rainwater infiltration part 120a must be formed in the partitioning box. The partitioning box mounted in the cartridge type is advantageous since it can be easily replaced as occasion demands.
[46] Meanwhile, the upper infiltration part 110 can also extend the infiltration course by mounting a partition in the upper infiltration part 110 (see FIGS. 3(b) and 7). That is, the partition is mounted only in the upper infiltration part 110 located above the initial rainwater infiltration part 120a of the lower infiltration part, so that the upper infiltration part 110 is partitioned into an infiltration entrance part 110b communicating with the connecting infiltration holes 121 of the initial rainwater infiltration part 120a and an earth receiving part 110a, which does not communicate with the connecting infiltration holes 121. In this instance, the partition prepared in the upper infiltration part 110 has partition infiltration holes 131, and the cover plate 150 has the rainwater
inflow holes 151 formed only on a portion, which covers the earth receiving part 110a of the upper infiltration part to thereby secure the infiltration course ranging from the earth receiving part 110a to the infiltration entrance part 110b and prevent a direct introduction of foreign matters, such as earth, into the infiltration entrance part 110b.
[47] As shown in FIGS. 4 to 8, the linear infiltration system according to the present invention can be easily completed by using the housing 100 of a unit size. That is, the housing 100 including the upper infiltration part 110 and the lower infiltration part 120 is manufactured in the unit size in an integrated state, and then, a plurality of the housings 100 are continuously arranged and installed in a longitudinal direction, whereby the linear infiltration system functioning as the storm sewer can be easily realized. The unit-oriented infiltration system is advantageous in that the workload of construction in the field can be reduced through the factory production so as to enhance economical efficiency of the infiltration system.
[48] It is preferable that the housing 100 of the unit size is configured in such a way that the initial rainwater infiltration part 120a is longitudinally arranged at the center of the lower infiltration part 120 and the overflow infiltration part 120b are arranged at both ends of the initial rainwater infiltration part 120a. The reason is that a continuous arrangement of the housings 100 enables the infiltration system to cope with an overflow of the rainwater since the upper infiltration parts 110 can be continuously arranged when the overflow infiltration part 120b is mounted in contact with the overflow infiltration part 120b of the next housing 100 to thereby rapidly induce the rainwater to a treatment pipe like the conventional storm sewer when the rainwater volume exceeding the available rainwater volume of the lower infiltration part 120 (including the initial rainwater infiltration part and the overflow infiltration part) during the localized downfall.
[49] FIGS. 4 and 5 illustrate an example of the integrated type housing 100 of the unit size, to which the concept of the linear infiltration system of FIG. 1 (the connecting infiltration hole of the overflow infiltration part is formed on the upper portion of the side) is applied. The housing 100 of the unit size is completed by integrating each structure of the housing in a process that the housing is manufactured in a factory.
[50] Furthermore, in FIGS. 4 and 5, a filter net 140 is mounted above the initial rainwater infiltration part 120a. The filter net 140 serves to filter the foreign matters (fallen leaves, earth, and so on) remaining in the upper infiltration part 110. In this instance, if the filter net 140 is formed to cover also the connecting infiltration holes 121 of the overflow infiltration part, it can restrain an introduction of the foreign matters into the connecting infiltration holes 121. Additionally, if a hand grip is mounted on the filter net 140, a user can easily pull out the filter net 140 and remove the foreign matters.
[51] FIGS. 6 to 8 illustrate the housing 100 of the unit size including a unit-sized infiltration tub 100a and covers 100b and 100c, to which the concept of the linear infiltration system of FIG. 2 (the connecting infiltration hole of the overflow infiltration part is formed on the upper surface) is applied. Each structure of the housing of the unit size can be completed through a simple assembly, and such a sectional housing is advantageous in that its management is easy.
[52] The unit-sized infiltration tub 100a includes side plates formed in a longitudinal direction, a bottom plate and both end plates formed in a width direction. In this instance, the both end plates are installed inward with a lower height than the both side plates to prepare a central inner space and form a connected portion when a plurality of the unit-sized infiltration tubs 100a are longitudinally arranged and connected with each other in series. In the drawings, a connection wing is disposed at an end of the side plate or an end of the bottom plate, so that the unit-sized infiltration tubs 100a are forcedly fit to each other for a tight connection between the unit-sized infiltration tubs 100a.
[53] The covers 100b and 100c are mounted in such a way as to close the central inner space and the inner space of the connected portion of the unit-sized infiltration tubs 100a arranged and connected with each other in series. In this instance, the central inner spaces and the inner spaces of the connected portions have different heights from each other, and arranged alternately, and the unit-sized infiltration tub 100a is divided into the upper infiltration part 110 and the lower infiltration part 120. Thereby, the linear infiltration system functioning as the storm sewer is completed in the form that the lower infiltration part 120 has the central inner space and the inner space of the connected portion and the upper infiltration part 110 is formed above the covers 100b and 100c. In this instance, the bottom infiltration holes 125 are formed on the bottom plate of the unit- sized infiltration tub 100a, and the connecting infiltration holes 121 are formed on the covers 100b and 100c. Of course, not shown in the drawings, but the connecting infiltration holes 121 may be formed on the cover 100b mounted lower than the other cover and on the end plates of the unit- sized infiltration tub 100a, which rises above the lower cover 100b, whereby the infiltration system can be completed according to the concept of the linear infiltration system of FIG. 1.
[54] In addition, in FIGS. 7 and 8, a plurality of the partitions 130 of the vertical wall type are mounted in the central inner space of the unit-sized infiltration tub 100a in such a way as to be mounted lower in height than the end plates, whereby the covers 100b and 100c can be easily mounted in a sectional type. In the drawings, the covers are divided into the first cover 100b put on the partitions 130 mounted in the central inner space of the unit-sized infiltration tub 100a and the second cover 100c spreading over both end plates forming the inner space of the connected portion, and in this
instance, the first cover 100b is lower than the second cover 100c. That is, the first cover 100b is mounted in such a way as to be supported by the partitions 130 while being in internal contact with the central inner space, but the second cover 100c is mounted in such a way as to be supported by the end plates while being in external contact with the inner space of the connected portion. As the result, the central inner space where the first cover 100b is mounted becomes the initial rainwater infiltration part 120a of the lower infiltration part, but the inner space of the connected portion where the second cover 100c is mounted becomes the overflow infiltration part 120c of the lower infiltration part. In this instance, the connecting infiltration holes 121 formed on the first cover 100b are locally arranged at a portion of the first cover 100b in consideration of the infiltration course. In FIG. 6(a), a partition is disposed to partition a formation space of the connecting infiltration holes 121 formed on the first cover 100b and to divide the upper infiltration part 100 into the infiltration entrance part 110b and the earth receiving part 110a. Of course, the partition disposed on the first cover 100b includes the partition infiltration holes 131. According to the above structure, when the first cover 100b and the second cover 100c can be easily mounted in the sectional type, it is advantageous in the user inspects and manages the inside of the housing 100, and it is preferable that hand-grips are respectively mounted on the first cover 100b and the second cover 100c to make opening and closing of the covers easy. Particularly, when the foreign matters, such as earth, contained in the initial rainwater is accumulated on the earth receiving part 110a of the first cover, the user can easily open the first cover 100b and remove the foreign matters accumulated on the first cover 100b.
[55] Meanwhile, FIGS. 6 to 8 show a state where two unit-sized infiltration tubs 100a are connected with each other in different directions, but may be connected with each other in the same direction. According to the connected direction of the unit-sized infiltration tubs 100a, the arrangement direction of the first covers 100b is determined, and a formation position of the connection wing formed on the end of the side plate or the end of the bottom plate of the unit-sized infiltration tub for the forced fitting must be considered.
[56] While the present invention has been described with reference to the particular illustrative embodiment, it is not to be restricted by the embodiment but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiment without departing from the scope and spirit of the present invention. Industrial Applicability
[57] According to the present invention, the linear infiltration system functioning as the storm sewer provides the following effects.
[58] First, the linear infiltration system according to the present invention can allow an easy infiltration of the rainwater since it can be substituted for the storm sewer without changing an installation method of the existing storm sewer and purify the pollutants contained in the initial rainwater, thereby treating and managing rainwater economically.
[59] Second, the linear infiltration system according to the present invention can secure infiltration of the initial rainwater and properly cope with the overflow during the localized downfall since it includes the upper and lower infiltration parts, the lower infiltration part being divided into at least two infiltration spaces of different heights.
Claims
[1] A linear infiltration system functioning as a storm sewer, which is buried under the ground of the roadside to induce rainwater to allow the rainwater to be infiltrated into the ground, the linear infiltration system comprising: a housing (100) having an upper infiltration part (110) into which rainwater is introduced and a lower infiltration part (120) located under the upper infiltration part for allowing the rainwater introduced into the upper infiltration part to pass therethrough; and a cover plate (150) for covering the upper portion of the housing and having rainwater inflow holes (151) formed on the surface thereof, wherein the lower infiltration part (120) includes: an initial rainwater infiltration part (120a) in which filter media are spread; and an overflow infiltration part (120b) located adjacent to the initial rainwater infiltration part and rising higher than the initial rainwater infiltration part, wherein connecting infiltration holes (121) are formed on the upper portion of a side or the upper surface of the overflow infiltration part and on the upper surface of the initial rainwater infiltration part, and bottom infiltration holes (125) are formed on the bottom of the initial rainwater infiltration part and the bottom of the overflow infiltration part, and wherein the rainwater inflow holes (151) of the cover plate are positioned above the initial rainwater infiltration part (120a) of the lower infiltration part.
[2] The linear infiltration system according to claim 1, wherein the housing (100) has the lower infiltration part (120) including the initial rainwater infiltration part (120a) arranged at the center thereof and the overflow infiltration parts (120b) arranged at both ends thereof, the housing being manufactured in a unit size, and wherein a plurality of the housings (100) manufactured in the unit size are longitudinally arranged in series in such a way that the overflow infiltration part (120b) of the lower infiltration part is in contact with the overflow infiltration part (120b) of the next housing (100).
[3] The linear infiltration system according to claim 1, wherein the housing (100) includes: a unit-sized infiltration tub (100a) having both side plates formed in a longitudinal direction, a bottom plate and both end plates formed in a width direction, the both end plates installed inward with a lower height than the both side plates to form a central inner space, a plurality of the unit-sized infiltration tubs (100a) being longitudinally arranged and connected with each other in series so that the connected portion has an inner space; and covers (100b, 100c) mounted to close the central inner space and the inner space
of the connected portion of the unit-sized infiltration tubs connected with each other, the central inner space and the inner space of the connected portion being formed alternately and having different heights from each other, the covers
(100b, 100c) partitioning the unit-sized infiltration tub into the upper infiltration part and the lower infiltration part, wherein the bottom infiltration holes (125) are formed on the bottom plate of the unit- sized infiltration tub (100a), and wherein the connecting infiltration holes are formed on the cover mounted lower than the other cover and on the end plates of the unit-sized infiltration tub, which rises above the lower cover, or formed on both covers (100b, 100c).
[4] The linear infiltration system according to claim 3, wherein a plurality of partitions (130) of a vertical wall type are mounted in the central inner space of the unit-sized infiltration tub (100a) in such a way as to be formed lower than the end plates, wherein the covers are divided into a first cover (100b) put on the partition (130) mounted in the central inner space of the unit-sized infiltration tub (100a); and a second cover (100c) spreading over the end plates forming the inner space of the connected portion, the first cover (100b) being mounted lower than the second cover (100c), wherein the partition (130) has partition infiltration holes (131) formed in a zigzag form alternately in such a way that an infiltration course of rainwater extending from the connecting infiltration holes (121) of the initial rainwater infiltration part to the bottom infiltration holes (125) becomes the longest distance, and wherein the bottom infiltration hole (125) is formed on the bottom of the final space of the initial rainwater infiltration part (120a) spaced farthest away from the connecting infiltration holes (121) of the first cover.
[5] The linear infiltration system according to one of claims 1 to 3, wherein a plurality of partitions (130) are mounted in the initial rainwater infiltration part (120a) of the lower infiltration part in the form of a vertical wall or a horizontal plate to partition the inner space of the initial rainwater infiltration part (120a), wherein each partition (130) has partition infiltration holes (131) formed in a zigzag form alternately in such a way that an infiltration course of rainwater extending from the connecting infiltration holes (121) of the initial rainwater infiltration part to the bottom infiltration holes (125) becomes the longest distance, and wherein the bottom infiltration hole (125) is formed on the bottom of the final space of the initial rainwater infiltration part (120a) spaced farthest away from
the connecting infiltration holes (121) of the initial rainwater infiltration part.
[6] The linear infiltration system according to claim 5, wherein the partition (130) formed in such a way that a partitioning box filled with filter media is inserted into the inner space thereof in a cartridge type is mounted in the initial rainwater infiltration part (120a), and wherein the connecting infiltration holes (121), the bottom infiltration holes (125) and the partition infiltration holes (131), which are prepared on the initial rainwater infiltration part (120a), are formed on the partitioning box.
[7] The linear infiltration system according to one of claims 1 to 4, wherein the upper infiltration part (110) located above the initial rainwater infiltration part (120a) of the lower infiltration part includes: an infiltration entrance part (HOb) communicating with the connecting infiltration holes (121) formed on the initial rainwater infiltration part (120a) of the lower infiltration part; and an earth receiving part (110a), which does not communicate with the connecting infiltration holes (121), and wherein the rainwater inflow holes (151) of the cover plate are formed on the earth receiving part (HOa) of the upper infiltration part.
[8] The linear infiltration system according to one of claims 1 to 4, wherein the filter media, which has water-permeability better than the filter media of the initial rainwater infiltration part, are spread in the overflow infiltration part (120b) of the lower infiltration part.
[9] The linear infiltration system according to one of claims 1 to 4, wherein the housing (100) has a stepped jaw formed on the upper portion thereof and bent outwardly, and wherein the cover plate (150) is mounted on the stepped jaw of the upper portion of the housing.
[10] The linear infiltration system according to one of claims 1 to 4, wherein a storage box or a collecting box is arranged under the housing (100).
[11] The linear infiltration system according to claim 10, wherein sand-hardening parts (400) are formed on the housing (100) and both sides of the storage box or the collecting box.
Applications Claiming Priority (6)
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KR1020060035723A KR100694591B1 (en) | 2006-04-20 | 2006-04-20 | The linear infiltration system functioning as a storm sewer |
KR10-2006-0035723 | 2006-04-20 | ||
KR20060118931 | 2006-11-29 | ||
KR10-2006-0118931 | 2006-11-29 | ||
KR1020070015300A KR100787518B1 (en) | 2006-11-29 | 2007-02-14 | The linear infiltration system functioning as a storm sewer |
KR10-2007-0015300 | 2007-02-14 |
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PCT/KR2007/001944 WO2007123342A1 (en) | 2006-04-20 | 2007-04-20 | The linear infiltration system functioning as a storm sewer |
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