CN217679008U - Diversion blind pipe structure for water seepage of surface of sloping field in alpine region - Google Patents
Diversion blind pipe structure for water seepage of surface of sloping field in alpine region Download PDFInfo
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- CN217679008U CN217679008U CN202221661218.8U CN202221661218U CN217679008U CN 217679008 U CN217679008 U CN 217679008U CN 202221661218 U CN202221661218 U CN 202221661218U CN 217679008 U CN217679008 U CN 217679008U
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Abstract
The utility model relates to a diversion blind pipe structure for water seepage of the surface of a sloping field in a high and cold area, which comprises a groove, a sand layer, a gravel layer, a soil layer, permeable geotextile, a geomembrane and a curved net permeable blind pipe; the soil layer, the gravel layer and the sand layer are sequentially arranged in the groove from bottom to top, and the curved mesh water-permeable blind pipe is longitudinally arranged along the groove and is buried in the gravel layer and the soil layer; the curved line net is covered with the geotechnical cloth that permeates water on the blind pipe, and the geotechnical cloth that permeates water is located the gravel layer below, and the geotechnical cloth both sides overlap joint has the geomembrane that permeates water, and the geomembrane covers earth's surface edge all the time through the slot side slope. This application sets up the blind pipe structure in the slot for the infiltration inflow blind pipe of hillside fields earth's surface is discharged fast, can solve the percolating water problem of alpine region hillside fields earth's surface effectively, and the drainage that draws catchments reduces ground water level, can reduce soil layer freeze thawing and destroy, avoids geological disasters ' emergence, can use widely.
Description
Technical Field
The utility model relates to a severe cold district earth's surface infiltration administers technical field, especially relates to the water conservancy diversion blind pipe structure of severe cold district hillside fields earth's surface infiltration.
Background
In high and cold areas or high and extremely cold latitudes, frozen soil exists in soil layers and is greatly influenced by temperature. The temperature is fast after the rainy season, and if the rainwater can not be removed in time, frozen soil is easily formed, and once the frozen soil is melted, a large amount of underground water is accumulated to cause geological disasters. The water quantity on the surface of the sloping field is increased due to the melting of the frozen soil, the water moves to the stratum, and serious disaster phenomena such as landslide, debris flow and the like can be caused due to the excessive underground water. Water is a significant contributor and must not be ignored.
The drainage treatment in the alpine region is particularly important, and the freezing and thawing phenomenon can be effectively prevented by arranging the drainage system at the sloping field. The traditional drainage mode is to dig a ditch on the ground surface to form a drainage ditch, a catch basin and the like. The drainage ditch both sides that tradition was built are easy ponding, and difficult discharge, lead to the side slope soil layer to receive frost heaving destruction.
SUMMERY OF THE UTILITY MODEL
The application provides a diversion blind pipe structure for water seepage of the sloping field surface of a high and cold region in order to solve the technical problems.
The application is realized by the following technical scheme:
the diversion blind pipe structure for water seepage on the surface of the sloping field in the alpine region comprises a groove, a sand layer, a gravel layer, a soil layer, permeable geotextiles, a geomembrane and a curved net permeable blind pipe; the soil layer, the gravel layer and the sand layer are sequentially arranged in the groove from bottom to top; the curved grain net water-permeable blind pipes are longitudinally arranged along the grooves and are buried in the gravel layer and the soil layer; the curved line net permeable blind pipe is covered with permeable geotextile, the permeable geotextile is positioned below the gravel layer, geomembranes are lapped on two sides of the permeable geotextile, and the geomembranes are covered to the edge of the earth surface through the groove side slope. This application sets up the blind pipe structure in the slot for the infiltration inflow blind pipe of hillside fields earth's surface is discharged fast, can reduce soil layer freeze thawing destruction.
Optionally, the two sections of the curved mesh water-permeable blind pipes are connected together by a PVC quick connector, and two ends of the PVC quick connector are respectively clamped by a twisted steel bar.
Particularly, the twisted steel is bent into a groove shape to clamp the curved-line net water-permeable blind pipe, and two ends of the twisted steel are driven into a soil layer.
Particularly, the height difference exists between the middle part and the two sides of the top surface of the sand layer, and the sand pile in the middle part is higher than the original ground surface line by a certain distance along the central line, so that the two sides form a flat gentle slope.
Optionally, the slope of the gentle slope is 3 degrees to 5 degrees.
Particularly, 2/3 of the upper half part of the curved net water-permeable blind pipe is provided with small holes, and the lower half part of the curved net water-permeable blind pipe is provided with no holes.
Particularly, 1/2 of the upper part of the permeable blind pipe of the curved grid is wrapped by permeable geotextile, and the geomembranes are laid on soil layers on two sides of the permeable blind pipe of the curved grid.
Compared with the prior art, the method has the following beneficial effects:
1. according to the drainage method, the curved mesh permeable blind pipes are laid in the grooves to concentrate rainfall, the grooves are backfilled, the drainage effect is good, the problem of water leakage of the sloping field surface in the alpine region can be effectively solved, freeze thawing damage can be reduced in the alpine region, and the soil layer is protected;
2. the permeable blind pipes of the curved mesh are not exposed by backfilling with sand gravel, so that the blind pipes are effectively protected from being damaged, and fine sand is laid on the uppermost layer to facilitate water filtration and discharge;
3. the middle part of the sand layer is piled up to form a gentle slope with the height difference of the two ends, so that the underground water is favorably collected to penetrate into the underground soil layer to enter the curved net permeable blind pipe, and the collected water is conveniently and quickly discharged.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
FIG. 1 is a longitudinal sectional view of a groove in an embodiment;
FIG. 2 is a vertical layered view of a flow guiding blind pipe structure in the embodiment;
FIG. 3 is a schematic view of the permeable geotextile, geomembrane and curved mesh permeable blind pipe in the embodiment;
FIG. 4 is a top view of the junction of two sections of the water-permeable blind pipes of the curved mesh in the example;
FIG. 5 is a top view of the connection of the curved mesh water-permeable blind pipe, the twisted steel bar and the PVC quick coupling in the embodiment;
FIG. 6 is a schematic view showing the embodiment when the deformed steel bar is bent into a groove shape to lock the water-permeable blind pipe with the curved-line net;
FIG. 7 is a three-dimensional view of a water-permeable blind pipe with a curved mesh in the example;
FIG. 8 is a sectional view of a water-permeable blind pipe with a curved mesh in the embodiment;
reference numerals: 1-sand layer, 2-gravel layer, 3-loess layer, 4-permeable geotextile, 5-geomembrane, 6-curved net permeable blind pipe, 7-uphill, 8-central line, 9-original surface line, 10-twisted steel bar and 11-PVC quick joint.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, or the directions or positional relationships that the persons skilled in the art usually understand, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific directions, be constructed and operated in specific directions, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
As described in the background art, once frozen soil melts in a severe cold area, excessive underground water is generated, a large amount of underground water can cause geological disasters, and severe disasters such as landslide, debris flow and the like can be easily caused at a sloping field. Therefore, the embodiment discloses a diversion blind pipe structure for water seepage on the surface of a sloping field in alpine regions.
As shown in fig. 1 and fig. 2, the diversion blind pipe structure for water seepage on the surface of a sloping field in an alpine region disclosed in the embodiment of the present invention includes a trench, a sand layer 1, a gravel layer 2, a soil layer 3, a permeable geotextile 4, a geomembrane 5, and a curved net permeable blind pipe 6.
The soil layer 3, the gravel layer 2 and the sand layer 1 are sequentially arranged in the groove from bottom to top. The blind pipe 6 that permeates water of curved line net vertically sets up and buries in gravel layer 2 and soil layer 3 along the slot, and gravel layer 2 plays the guard action to the blind pipe 6 that permeates water of curved line net, reduces the blind pipe 6 that permeates water of curved line net and takes place to damage because of the effort of water.
In a possible design, the gravel layer 2 is laid on the soil layer 3, and a sand layer 1 with a thickness of 100mm to 200mm is laid on the gravel layer 2.
In one possible design, the particle size of the gravel in the gravel layer 2 is 1-10mm, the particle size of the fine sand in the sand layer 1 is 0.25-0.35mm, the fine sand with the fine particle size has a water filtering function, and meanwhile, the flowing and permeation of water are reduced, so that the seepage of underground water is reduced.
The curved mesh net water-permeable blind pipe 6 is provided with a plurality of water seepage holes, collected water enters the blind pipe 6 through the water seepage holes, the curved mesh net water-permeable blind pipe 6 is covered with the water-permeable geotextile 4, the water-permeable geotextile 4 can effectively reduce small-grain-size gravel entering the blind pipe 6, and the condition that the curved mesh net water-permeable blind pipe 6 is blocked by gravel is effectively avoided.
In a possible design, the water collecting part of the curved-line net water-permeable blind pipe 6 is 60%, the water draining part is 30%, the existing tooth-mountain-net-shaped hard water-permeable blind pipe 8 can be selected, and the curved-line net water-permeable blind pipe 6 is good in performance, strong in ageing resistance, strong in corrosion resistance and wide in adaptive temperature range.
In one possible design, as shown in fig. 7 and 8, the curved mesh water-permeable blind pipe 6 is provided with small holes on the upper part 2/3 and no holes on the lower part 1/3. Compared with the traditional ditch drainage, the curved-line net permeable blind pipe 6 has extremely strong water collection capacity, can quickly drain collected water, and avoids water and soil loss. The bottom is a non-porous part, which is beneficial to draining collected water quickly and preventing secondary leakage.
In a possible design, the middle part and the two sides of the top surface of the sand layer 1 have a height difference, and the sand piling in the middle part is higher than the original ground surface line by a distance of 9100mm along a central line 8, so that the two sides form gentle slopes with the gradient of about 3-5 degrees. Make water collect at upslope 7, upslope 7 collects the water that the top seepage flows down for accumulational rivers go into the slot, get into curved line net blind pipe 6 that permeates water in, the quick discharge of catchmenting of being convenient for.
In a possible design, as shown in fig. 3, two sides of the permeable geotextile 4 are overlapped with the geomembrane 5, the overlapping length of the geomembrane 5 and the permeable geotextile 4 is 30 to 50mm, and the geomembrane 5 and the permeable geotextile 4 are laid with one layer.
It is worth to be noted that the geomembrane 5 laid on the soil layers 3 on the two sides of the curved-pattern net water-permeable blind pipe 6 is covered to the edge of the earth surface through the side slope of the groove.
In one possible design, the cross-sectional dimension of the groove is 500mm in width at the bottom, 1200mm to 1400mm in depth, and the two sides are sloped at 60 degrees.
In a possible design, as shown in fig. 4 and 5, two sections of the curved mesh water-permeable blind pipes 6 are connected together by a PVC quick coupling 11, and a twisted steel bar 10 is respectively used at two ends of the PVC quick coupling 11 to clamp the curved mesh water-permeable blind pipes 6, so that the curved mesh water-permeable blind pipes 6 cannot swing left and right, and water collection and rapid circulation are facilitated.
In one possible design, as shown in fig. 6, the diameter of the twisted steel 10 is 6mm to 8mm, the twisted steel is bent into a groove shape to clamp the curved-pattern net water-permeable blind pipe 6, and two ends of the twisted steel 10 are driven into loess to a certain depth.
The application discloses a construction method of a diversion blind pipe structure for water seepage of the surface of a sloping field in alpine regions, which comprises the following steps:
s1, digging a groove in a sloping field of a water seepage section or a water-rich section of the earth surface of a high and cold area, and tamping and leveling the bottom of the groove by using an original soil sample;
s2, paving a curved-pattern net water-permeable blind pipe 6 with the diameter of 100mm on an undisturbed soil layer at the bottom, and then filling the curved-pattern net water-permeable blind pipe 6 with loess till the diameter of the blind pipe is 1/2;
s3, wrapping 1/2 of the upper part of the curved-mesh water-permeable blind pipe 6 with water-permeable geotextile 4, paving a geomembrane 5 on soil layers 3 on two sides of the curved-mesh water-permeable blind pipe 6, and overlapping the geomembrane 5 and the water-permeable geotextile 4 together.
S4, backfilling the groove with gravels to form a gravel layer 2;
s5, laying fine sand with the thickness of 200mm on the gravel layer 2 to form a sand layer 1; the height difference exists between the middle part and the two sides of the top surface of the sand layer 1 to form a gentle slope.
In the embodiment, a groove is dug at a proper position of a sloping field, a curved mesh water-permeable blind pipe is laid in the groove to concentrate rainfall, and the groove is backfilled. The construction of this structure has reduced engineering construction cost input, and engineering construction is simple and easy, draws to arrange effectually, can solve the percolating water problem of alpine region hillside fields earth's surface effectively, and the drainage that catchments reduces ground water level, does benefit to the hidden danger that solves existence, avoids the emergence of geological disasters, can use widely.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present application, it should be understood that the above embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The water conservancy diversion blind pipe structure of hi-cold district hillside fields earth's surface infiltration, its characterized in that: comprises a groove, a sand layer (1), a gravel layer (2), a soil layer (3), a permeable geotextile (4), a geomembrane (5) and a curved net permeable blind pipe (6);
the soil layer (3), the gravel layer (2) and the sand layer (1) are sequentially arranged in the groove from bottom to top; the curved grain net water-permeable blind pipe (6) is longitudinally arranged along the groove and is buried in the gravel layer (2) and the soil layer (3);
the upper side of the curved mesh permeable blind pipe (6) is covered with permeable geotextile (4), the permeable geotextile (4) is positioned below the gravel layer (2), geomembranes (5) are lapped on two sides of the permeable geotextile (4), and the geomembranes (5) are covered to the edge of the earth surface through the groove side slope.
2. The diversion blind pipe structure for water seepage of the sloping field surface of the alpine region according to claim 1, characterized in that: the lap joint length of the geomembrane (5) and the water-permeable geotextile (4) is 30 to 50mm.
3. The blind diversion pipe structure for water seepage of the surface of the hillside fields in the alpine region according to claim 1, characterized in that: the two sides of the groove are in a slope shape of 60 degrees.
4. The diversion blind pipe structure for water seepage of the sloping field surface of the alpine region according to claim 1, characterized in that: the two sections of the curved mesh water-permeable blind pipes (6) are connected together by a PVC quick connector (11), and the two ends of the PVC quick connector (11) are respectively clamped with a threaded steel bar (10) to clamp the curved mesh water-permeable blind pipes (6).
5. The diversion blind pipe structure for water seepage of the sloping field surface of the alpine region according to claim 4, characterized in that: the threaded steel bars (10) are bent into groove-shaped clamping curved-line net water-permeable blind pipes (6), and two ends of the threaded steel bars (10) are driven into the soil layer (3).
6. The diversion blind pipe structure for water seepage of the sloping field surface of the alpine region according to claim 1, characterized in that: the diameter of the curved mesh water permeable blind pipe (6) is 100mm.
7. The diversion blind pipe structure for water seepage of the sloping field surface of the alpine region according to claim 1, characterized in that: the middle part and the two sides of the top surface of the sand layer (1) have a height difference, and the sand pile in the middle part is higher than the original earth surface line (9) by a certain distance along the central line (8), so that the two sides form a flat and gentle slope.
8. The diversion blind pipe structure for water seepage of the sloping field surface of the alpine region according to claim 7, characterized in that: the gradient of the flat gentle slope is 3-5 degrees.
9. The diversion blind pipe structure for water seepage of the sloping field surface of the alpine region according to claim 1, characterized in that: the 2/3 of the upper half part of the curved mesh water-permeable blind pipe (6) is provided with small holes, and the 1/3 of the lower half part is not provided with holes.
10. The diversion blind pipe structure for water seepage of the surface of a sloping field in a alpine region according to any one of claims 1 to 9, wherein: 1/2 of the upper part of the curved mesh water-permeable blind pipe (6) is wrapped by water-permeable geotextile (4), and the geomembrane (5) is laid on soil layers (3) on two sides of the curved mesh water-permeable blind pipe (6).
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| CN202221661218.8U CN217679008U (en) | 2022-06-30 | 2022-06-30 | Diversion blind pipe structure for water seepage of surface of sloping field in alpine region |
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| CN202221661218.8U CN217679008U (en) | 2022-06-30 | 2022-06-30 | Diversion blind pipe structure for water seepage of surface of sloping field in alpine region |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118345869A (en) * | 2024-06-17 | 2024-07-16 | 成都大学 | High and cold area gully front edge soil retaining and drainage system and implementation method thereof |
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2022
- 2022-06-30 CN CN202221661218.8U patent/CN217679008U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118345869A (en) * | 2024-06-17 | 2024-07-16 | 成都大学 | High and cold area gully front edge soil retaining and drainage system and implementation method thereof |
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