WO2011059145A1

WO2011059145A1 - Structure using steel pile

Info

Publication number: WO2011059145A1
Application number: PCT/KR2010/001001
Authority: WO
Inventors: 임철
Original assignee: Lim Cheol
Priority date: 2009-11-12
Filing date: 2010-02-18
Publication date: 2011-05-19

Abstract

The present invention relates to a ground structure using steel piles for stably constructing various kinds of structures such as bridges and retaining walls on the ground, buildings on the water and housings, wherein steel piles having resistance to vibration are buried underground as shafts. A bridge structure according to an embodiment of the present invention includes: a steel pile fixed with at least two or more ribs in the radial direction outside the front end portion of a steel pipe, which is in the hollow cylindrical shape, and an extension plate in the doughnut shape with a diameter larger than the steel pipe on the bottom surfaces of the ribs; a main girder supporting beam stacked on top of the steel pile; a composite beam stacked on the main girder supporting beam and formed of a first beam, a second beam stacked on top of the first beam, and overlapping connection plates overlapping the both lower end portions of the first beam and the both upper end portions of the second beam; and a deck plate stacked on top of the composite beam. The steel pile is fixed and supported by concrete, which is mixed with a corrosion inhibiting admixture, in the bore hole in the ground. The composite beam is coupled by bolts which penetrate the first beam, the second beam and the overlapping connection plates.

Description

Structure using steel pipe pile

The present invention relates to a structure using a steel pipe pile, and more particularly, a steel pipe pile in which various kinds of structures such as bridges, retaining walls, water buildings, and houses are stably constructed on the ground based on the seismic steel pipe piles embedded in the ground. It relates to a ground structure using.

In general, in order to construct an underground structure or to construct a structure such as a bridge, a water structure, a retaining wall, and the like, the bearing capacity of the ground is increased by injecting various piles into the ground so that the structure can obtain sufficient support from the ground.

The construction method of the pile to support the various structures as described above, there is a type pile method, on-site casting pile method and embedded pile method, and the type pile method is a method of excavation by hitting the steel pipe, the site casting pile method is a casing It is a method of constructing piles at the site by excavating the inside of the casing and placing concrete in the casing. The embedding pile method is a method to secure bearing capacity by laying steel pipe piles after excavating the ground in advance.

Among the construction methods of the pile construction method, the embedded pile method is a construction method of injecting piles while digging the ground using excavation equipment such as Earth Auger, and filling the concrete at the tip of the pile. There is an advantage that can greatly improve the ground vibration problem.

The conventional pile construction process by the embedded pile construction method of the above-described pile construction method is shown in FIG.

According to the conventional buried pile construction method as shown, first excavating the ground using an auger (a), and then filling the tip fixed liquid (concrete grout) from the bottom of the excavation hole to a predetermined height (typically 60 cm) b) If the tip fixed liquid layer is cured to some extent, fill the fixed surface (concrete grout) on the upper side (c), and insert the steel pipe into the excavation hole so that the tip of the steel pipe is seated on the tip fixed liquid layer (d) (e). This completes the construction process of the purchase pile.

However, in the conventional buried pile construction method as described above, since the diameter of the steel pipe is relatively small compared to the diameter of the excavation hole, the bearing force of the tip portion due to the load acting in the lateral direction is inevitably weak. That is, when a gap is formed between the lower end of the steel pipe and the side wall of the excavation hole, the steel pipe may flow as much as the gap when a load is applied in the lateral direction.

In order to prevent this, as shown in FIG. 2, the space between the excavation side wall and the steel pipe may be narrowed by using a steel pipe having a diameter Φ close to the diameter of the excavation hole to ensure sufficient rigidity. When the concrete is poured into the space, it is difficult to insert the tremi tube, and thus the construction property is degraded. In particular, the construction cost is increased due to the high raw material cost due to the use of relatively large diameter steel pipes.

In addition, the steel pipe according to the prior art has a problem in that the material is separated from the concrete and the steel pipe due to the allowable stress difference in the pile front end, the rigidity is lowered, the end occlusion effect is uncertain, and the bearing capacity is weakened.

That is, the pile according to the prior art is not able to guarantee a sufficient bearing force when a strong load is applied from the upper side, in particular, there is a fear that the lower front end portion of the pile by the load acting in the lateral direction.

Therefore, the present invention has been proposed to solve the above problems, it is possible to ensure a sufficient space between the steel pipe pile and the excavation side wall can be made easily such as concrete pouring, at the same time of the steel pipe pile It is an object of the present invention to provide a seismic resistant steel pipe pile and a construction method thereof that are provided with a support force expanding device at the distal end to secure a solid support force even in loads in the vertical and lateral directions.

In addition, it is an object of the present invention to provide a variety of civil engineering structures and construction methods that can be stably supported while being able to easily install the earthquake-resistant steel pipe pile as described above.

Bridge structure according to an embodiment of the present invention for achieving the above object is at least two ribs are radially fixed to the outside of the hollow cylindrical steel pipe tip portion, the bottom of the rib has a donut having a larger diameter than the steel pipe Steel pipe pile to which the expansion plate of the mold is fixed; Mold support beam stacked on top of the steel pipe pile; A composite beam stacked on the mold support, the composite beam including a first beam, a second beam stacked on top of the first beam, and a padding plate attached to upper and lower ends of the first beam and lower ends of the second beam; And a porous plate stacked on top of the composite beam, wherein the steel pipe pile is fixed and supported by concrete mixed with an antirust admixture in an excavation hole of the ground, and the composite beam is provided with the first beam, the second beam, and the splice plate. It is characterized by being fastened by a bolt passing through.

In addition, in the cut retaining wall structure according to the embodiment of the present invention, at least two or more ribs are radially fixed to the outside of the hollow cylindrical steel pipe tip, and a donut type expansion plate having a diameter larger than the steel pipe is fixed to the bottom of the rib. As the steel pipe pile, the lower end of the steel pipe pile is inserted into the ground is fixed by concrete, the upper end of the steel pipe pile is characterized in that a plurality of reinforcing members and concrete layers are connected to each other.

In addition, in the retaining wall structure according to an embodiment of the present invention, at least two or more ribs are radially fixed to the outside of the hollow cylindrical steel pipe tip, and a donut type expansion plate having a diameter larger than that of the steel pipe is fixed to the bottom of the rib. And a steel pipe pile in which '⊂'-shaped guide rails are symmetrically fixed to each other outside of the steel pipe, and the lower buried portion of the steel pipe to which the ribs and the expansion plate are fixed is fixed by a concrete layer in the ground, and the guide rail The earth plate is sequentially inserted sliding, characterized in that the plurality of steel pipe top is configured to be connected to each other by a connecting member.

In addition, in the water phase structure according to the embodiment of the present invention, at least two or more ribs are radially fixed to the outside of the hollow cylindrical steel pipe tip, and the bottom surface of the rib is a donut-type expansion plate having a larger diameter than the steel pipe is fixed. Steel pipe piles; And a water base member configured to be in contact with the water surface and having a flat base portion for supporting various constructions on the top, and a support portion inserted into the steel pipe to support the base portion, and fastened to an upper end of the steel pipe pile. The lower end of the steel pipe pile is embedded in an excavation hole of the underwater ground, and is fixedly supported on the ground by a concrete layer placed in the excavation hole, and the upper end of the steel pipe pile is configured to protrude above the surface of the water to fasten the water member. It is characterized by.

In the above-described configuration, between the inner wall of the steel pipe and the outer wall of the support portion is provided with a sliding member for allowing the support portion to move up and down, the base portion is configured to flow up and down according to the height of the water surface by buoyancy It features.

In addition, the seismic housing structure according to the embodiment of the present invention is a seismic housing structure in which the foundation slabs, interlayer slabs and roof slabs are formed on the ground with a plurality of steel pipe piles introduced into the ground, wherein the steel pipe piles are hollow. At least two ribs are radially fixed to the outside of the lower end of the cylindrical steel pipe, and the tip of the donut-shaped expansion plate is fixed to the bottom of the rib, and the concrete is poured by injecting underground drilling holes, and the foundation slab protrudes to the ground surface. The steel pipe pile is formed by a reinforced concrete method to form a foundation floor based on the axis. A rubber or silicon shock absorbing pad is interposed between the steel pipe pile and the foundation slab to impart earthquake resistance by earthquakes. It is characterized in that the configuration.

In the above-described configuration, the support shaft on the upper side of the foundation slab is formed by connecting a steel box of a rectangular shape (Steel Box) integrally with the upper end of the steel pipe pile, or concrete is poured in a square shape along the outer peripheral surface of the steel pipe pile Characterized in that the steel pipe is made of concrete (SRC).

Steel pipe pile of the present invention is secured enough space between the steel pipe and the excavation side wall to facilitate the construction, such as concrete placing, at the same time the front end of the steel pipe pile is inserted into the ground is provided with a support force expansion device vertical and lateral direction It is possible to secure a solid supporting force against the load of the furnace.

In addition, it is possible to construct a variety of structures that are stably supported by the earthquake-resistant steel pipe pile as described above simple and low cost.

1 is a process chart showing the construction process of the steel pipe pile according to the prior art,

Figure 2 is a cross-sectional view showing in detail the tip of the penetration pile according to the prior art,

3 is a perspective view showing a steel pipe pile according to the first embodiment of the present invention,

4 is a cross-sectional view showing in detail the front end of the steel pipe pile according to the first embodiment of the present invention;

5 is a process chart showing the construction process of the steel pipe pile according to the first embodiment of the present invention,

6 is a side view showing a bridge structure according to a second embodiment of the present invention;

7 is a front view showing the bridge structure according to the embodiment of FIG.

8 is a perspective view showing a composite beam of the bridge structure according to the embodiment of FIG.

9 is a side cross-sectional view showing a cut retaining wall according to a third embodiment of the present invention;

10 is a front sectional view showing the cut retaining wall according to the embodiment of FIG.

11 is a perspective view showing a retaining wall according to a fourth embodiment of the present invention;

12 is a perspective view showing the steel pipe pile of the retaining wall according to the embodiment of FIG.

13 is a front view showing the water structure according to the fifth embodiment of the present invention;

14 is a cross-sectional view showing the water member according to the embodiment of FIG. 13,

15 is a process chart showing the construction process of the steel pipe pile according to the embodiment of FIG.

16 is a front sectional view showing a seismic housing according to a sixth embodiment of the present invention;

17 is a cross-sectional view illustrating a slab fixing state of the seismic housing according to the embodiment of FIG. 16;

18 is a cross-sectional view showing the steel pipe pile structure of the seismic housing according to the embodiment of FIG.

* Explanation of symbols for main parts of the drawings

100: steel pipe pile 110: steel pipe

120: rib 130: expansion

200: composite beam 220: first beam

230: second beam 250: connection means

300: incision retaining wall 400: earth retaining wall

500: water member 600: earthquake-resistant housing

The technical problems achieved by the present invention and the practice of the present invention will be more clearly understood by the preferred embodiments of the present invention described below. The following examples are merely illustrated to illustrate the present invention and are not intended to limit the scope of the present invention. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Civil construction according to an embodiment of the present invention is to be constructed on the upper side of the earthquake-resistant steel pipe piles in the ground, bridges for bicycle roads or bridge construction for subway construction, incision site or underground trench construction Various structures can be constructed, such as retaining wall structures for earthquake barriers, water structures installed on the surface of the sea or river, and earthquake-resistant houses with seismic resistance.

Hereinafter, the steel pipe pile according to an embodiment of the present invention and the various structures that are constructed as a support shaft of the steel pipe pile in detail look at according to each embodiment.

[First Embodiment]

The first embodiment of the present invention relates to a steel pipe pile and a construction method thereof.

3 is a perspective view showing the steel pipe pile according to the first embodiment of the present invention, Figure 4 is a cross-sectional view showing in detail the front end of the steel pipe pile according to the first embodiment of the present invention, Figure 5 is a first embodiment of the present invention Process diagram showing the process of constructing the steel pipe pile according to the example.

3 and 4, the steel pipe pile 100 according to the first embodiment of the present invention is a rib 120, the bottom surface of the rib 120 is fixed to the outer end of the circular column-shaped steel pipe 110 It includes an expansion plate 130 fixed to.

Looking at this in more detail, the above-described steel pipe 110 is a configuration for supporting the load on the upper side, is formed in a hollow cylindrical shape having a predetermined diameter (Φ 1). In particular, the steel pipe pile according to the prior art is composed of a steel pipe of a diameter smaller than the diameter of the excavation hole (2), the steel pipe pile according to an embodiment of the present invention is a big difference from the diameter of the excavation hole (2) Consisting of a relatively small diameter (Φ1) of steel pipe, the gap between the steel pipe 110 and the excavation hole wall can be inserted into the tremi tube can be easily placed in concrete. In addition, it is possible to reduce the construction cost by reducing the amount of raw materials used in the production of the steel pipe by a relatively small diameter steel pipe.

The above-described rib 120 is provided with a plurality of fixed to the outside of the tip of the steel pipe 110 by welding, and is fixed radially with respect to the steel pipe 110 and its bottom surface is consistent with the bottom surface of the steel pipe 110. .

The rib 120 supports the expansion plate 130 with respect to the steel pipe 110, and is embedded in the concrete layer (3) that is poured in the lower portion of the excavation hole during the embedded pile process.

The above-described expansion plate 130 is a donut-shaped disk, which is fixed by welding to the bottom surface of the rib 120 and its inner diameter matches the inner diameter of the steel pipe 110, and the outer diameter Φ 2 is the outer diameter of the steel pipe 110. It is larger than Φ1) and is formed with a smaller difference than the inner diameter of the excavation hole (2).

As such, the expansion plate 130 is firmly fixed to the front end of the steel pipe 110 and the outer diameter is formed larger than the outer diameter of the steel pipe serves to enlarge the diameter of the front end of the steel pipe 110.

Therefore, the gap formed between the steel pipe 110 and the side wall of the excavation hole 2 at the tip when the steel pipe pile 100 is inserted into the excavation hole is much narrower than when the expansion plate 130 is not provided. As it loses, the bearing capacity of the tip of the steel pipe is increased accordingly.

In addition, the steel pipe pile 100 having the structure as described above is a steel pipe 110 of a relatively small diameter (Φ1) by the rib 120 and the expansion plate 130 provided at the front end of the steel pipe 110, compared to the prior art. Even if it is configured, it can exhibit the same rigidity, and at the same time, it is possible to solve the problem of increase in construction cost due to the increase in the raw material price of metal materials.

That is, the steel pipes of Φ 406 and Φ 812 diameters according to the first embodiment of the present invention may exhibit the same or more rigidity than those of the steel pipes of Φ 506 and Φ 1500 diameters according to the prior art, respectively.

On the other hand, although not shown, to the inside of the front end of the steel pipe 110 may be further coupled to the reinforcing bar member on the mesh in order to increase the coupling force of the concrete (3) and the steel pipe (110).

Steel pipe pile 100 having the structure as described above is constructed by the embedding method, looking at the construction process with reference to Figure 5, first, to excavate the ground using the auger (1) to form an excavation hole (a) ). At this time, the case 4 is inserted at the same time as the excavation to prevent the side wall of the excavation hole 2 from collapsing (b).

Subsequently, the steel pipe pile 100 according to the first embodiment of the present invention is introduced into the excavation hole 2 (c), and the concrete 3 is poured so that the steel pipe pile 100 in the ground is embedded in the concrete 3. do. At this time, the process of drawing out the case 4 at the same time as placing the concrete 3 is made (d).

The concrete 3 may be poured concrete by the concrete concrete both inside the steel pipe and between the steel pipe and the excavation wall, but when the gap between the steel pipe and the excavation wall is narrow, cement mortar may be filled between the steel pipe and the excavation wall. have. In addition, the concrete (3) is mixed with a rust preventing admixture for preventing corrosion of the steel pipe.

Concrete poured into steel pipe piles according to the prior art is the separation of concrete and steel pipe at the stress concentration portion of the tip so that the bearing capacity of the steel pipe pile is dependent only on the rigidity of the steel pipe pile itself. However, in the first embodiment of the present invention, the concrete 3 coupled to the front end of the steel pipe does not have material separation, so that the rigidity of the concrete is converted into steel pipe piles, thereby contributing to raising the rigidity of the steel pipe piles. In addition, the concrete filled in and out of the steel pipe increases the period of eigenvalues and the seismic load capacity is greatly improved.

That is, the ribs 120 and the expansion plate 130 fixed to the front end of the steel pipe 110 is completely embedded in the concrete (3), and the inside and outside of the steel pipe is filled with concrete, the rigidity of the concrete is converted into steel pipe pile Overall rigidity is raised. For this reason, the steel pipe piles having a diameter of Φ 406 and Φ 812 according to the first embodiment of the present invention may exhibit cross-sectional forces equal to or greater than those of the steel pipe piles having diameters of 506 and Φ 1500 according to the prior art, respectively.

Second Embodiment

The second embodiment of the present invention relates to a bridge structure and a construction method using the seismic resistant steel pipe piles according to the first embodiment.

Figure 6 is a side view showing a bridge structure according to a second embodiment of the present invention, Figure 7 is a front view showing a bridge structure according to a second embodiment of the present invention, Figure 8 is a second embodiment of the present invention. A perspective view showing a composite beam of a bridge structure.

First, the bridge or bridge structure according to the second embodiment of the present invention, as shown in Figure 6, the mold support 210 is installed on the upper portion of the steel pipe pile 100, the The composite beam 200 is formed on the upper portion. Here, the composite beam 200 is arranged to approximately 2M, the upper portion of the composite beam 200 is provided with a perforated plate 240 in contact. Here, the perforated plate 240 is mounted so that both ends of the composite beam 200 over the upper surface, it is fixed to the composite beam 200 by welding or lever.

The steel pipe pile 100 is constructed according to the first embodiment of the present invention, by sequentially forming the mold support beam 210, the composite beam 200, the perforated plate 240 on the top of the steel pipe pile 100, When constructing a subway, it can be usefully applied to the construction of temporary bridge structures for general vehicles or pedestrian traffic, or bridge structures for walkways or bicycle paths along beaches or riversides.

In particular, the structure of the composite beam according to the second embodiment of the present invention will be described in detail with reference to FIGS. 7 and 8, wherein the composite beam includes a first beam 220 supported on the mold support 210 and the first beam 220. The second beam 230 and the first beam 220 and the second beam 230 which are stacked on the first beam 220 and are positioned on the bottom surface of the porous plate 240 to support the porous plate 240 are supported. It comprises a connecting means 250 for connecting to each other.

The size of the first beam 220 and the second beam 230 may vary depending on the width of the road, the height (H) X width (B) X thickness (t1) when the road width of the temporary construction is 16 to 30M For the X thickness t2, the first beam is 800 × 300 × 14 × 16, and the second beam is 300 × 300 × 10 × 15 to 800 × 800 × 14 × 16.

For example, when the road width of the temporary construction is 20M, for the height (H) X width (B) X thickness (t1) X thickness (t2), the first beam 220 is 800 X 300 X 14 X 16 Preferably, the second beam 230 is set to 600 × 300 × 12 × 17. In addition, when the road width of the temporary construction is more than 20M it is obvious that the specifications of the second beam 230 should be adjusted upward.

The first beam 220 (HXB = 600 × 300) has a cross-sectional area A = 1745 mm ² , a second moment Iy = 1,030,000,000 mm ⁴ , a cross-sectional coefficient Zy = 3,539,518 mm ³ , and the second beam 230. (HXB = 800X300) is the cross-sectional area (A) = 2674mm ² , the second moment (Iy) = 2,920,000,000 mm ⁴ , and the section modulus (Zy) = 7,300,000mm ³ , the composite beam 100 (HXB = 1400X300) is the cross-sectional area (A ), 4285 mm ² , secondary moment (Iy) = 8,678,000,000 mm ⁴ , and section modulus (Zy) = 12,205,344 mm ³ .

As can be seen above, the composite beam 100 has a structure in which the first beam 220 and the second beam 230 are stacked, and simply values the values of the first beam 220 and the second beam 230. It can be seen that the cross-sectional area, second moment, and section modulus items are significantly improved.

In this case, the connecting means 250 is spot welded 251 at both ends of the first beam 220 and the second beam 230, or the first beam 220 and the second beam 230 of the second beam 230. An additional joint plate 252 may be padded at both ends, and the bolt 253 may pass through the second beam 230, the additional joint plate 252, and the first beam 220.

That is, in the bridge structure according to the second embodiment of the present invention, the composite beam 200 can be used by simply connecting a plurality of common mold beams in the field as the connecting means 250, while reducing the construction period and cost, and at the same time Excellent performance.

Example 3

A third embodiment of the present invention relates to a retaining wall constructed in an incision site using a seismic resistant steel pipe pile according to the first embodiment, and a construction method thereof.

9 is a side cross-sectional view showing a cut retaining wall according to a third embodiment of the present invention, Figure 10 is a front sectional view showing a cut retaining wall according to a third embodiment of the present invention.

As shown, the cut retaining wall 300 according to the third embodiment of the present invention is formed of a concrete retaining wall 300 that is supported by a plurality of steel pipe piles 100, the tip of which is embedded in the ground deep.

Specifically, the reinforcing member 310 is constructed along the plurality of steel pipe piles 100 which are constructed to protrude to the ground according to the first embodiment of the present invention, and the retaining wall 300 to the outside of the reinforcing member 310. Construct a formwork (not shown) to form the shape of. The retaining wall 300 is formed by pouring concrete 320 into the formwork, and after the casted concrete 320 is properly cured, the formwork is removed, and the retaining wall 300 is completed by the exterior treatment. Thereafter, the space between the retaining wall 300 and the cutout may be filled with the earth and sand 30, and the upper portion of the filled earth and sand 30 may be covered with a nonwoven fabric 40, or may be boiled with vegetation.

Retaining wall according to the prior art is a structure that must be connected to the left and right processing stone with a connecting pin, the anchor and the connecting wire, ground reinforcement to each other while stacking the processing stone, one by one, the process is difficult and complicated. However, there was a defect that the bearing capacity was weak and cracked in the retaining wall or the ground subsided by load.

However, the retaining wall according to the third embodiment of the present invention can be simply constructed by placing concrete, and is able to stably withstand the pressure of the incision soil due to being buried to a predetermined depth of the ground and supported by a firmly fixed steel pipe pile. do.

Example 4

The fourth embodiment of the present invention relates to an earth block structure for underground excavation construction using the seismic resistant steel pipe piles according to the first embodiment, and a construction method thereof.

11 is a perspective view showing a retaining wall according to a fourth embodiment of the present invention, Figure 12 is a perspective view showing a steel pipe pile of the retaining wall according to a fourth embodiment of the present invention.

As shown in FIG. 11, the construction of the retaining wall 400 according to the fourth embodiment of the present invention purchases a plurality of earthquake-resistant steel pipe piles 100 in accordance with the first embodiment of the present invention to a depth deep in the ground. , The earth plate 410 is inserted into the guide rail 140 of the steel pipe pile 100 in accordance with the excavation construction.

That is, the steel pipe pile 100 is purchased at regular intervals in the same process as in the first embodiment of the present invention along the edge of the predetermined area where the excavation work is to be carried out, and after a predetermined time that the concrete 3 is sufficiently cured, Proceed with the excavation. Simultaneously inserting the earth plate 410 along the guide rail 140 of the steel pipe pile 100 at the same time as the digging process to prevent the soil from falling down, the digging work can proceed smoothly.

As shown in the above repetitive process, the excavation work up to a predetermined depth may be performed. In addition, the top of the plurality of steel pipe pile 100 may be configured to be connected to each other by a connecting member 420 using H-shaped steel, etc. in order to improve the bearing capacity for the earth and sand pressure.

As shown in FIG. 12, the steel pipe pile of the retaining wall 400 according to the fourth embodiment of the present invention has a lower pile A, which is buried and fixed in the ground, and an upper pile installed with a digging construction. It is divided into (B). A guide rail 140 is formed in the upper pile B, and the earth plate 410 is inserted along the guide rail 140 to prevent the soil wall from falling down.

The guide rail 140 is configured to be inserted while the earth plate 410 is slid, the earth plate 410 is easily slid into a '⊂' shaped sliding piece to prevent the forward movement by the earth pressure Is formed. The guide rail 140 of the structure as described above is the steel pipe 110 in the upper end, that is, the trench is performed in the entire length of the steel pipe pile 100, except for the portion where the steel pipe 110 is embedded into the ground (10) Are formed symmetrically on both sides.

As the soil retaining wall 400 according to the fourth embodiment of the present invention having the above-described configuration uses a seismic resistant steel pipe pile 100, the steel pipe pile 100 embedded in the ground is stably supported and supported, and thus, separate sides. Since the brace reinforcement is not constructed, the construction can proceed safely and efficiently.

Example 5

The fifth embodiment of the present invention relates to a water structure and its construction method that is constructed on the surface of the sea or river using the steel pipe pile according to the first embodiment.

FIG. 13 is a front view illustrating a water structure according to a fifth embodiment of the present invention, FIG. 14 is a cross-sectional view illustrating a water member according to the embodiment of FIG. 13, and FIG. 15 is a construction of a steel pipe pile according to the embodiment of FIG. 13. Process diagram showing the process.

The water structure according to the fifth embodiment of the present invention is a structure in which the water member 500 is constructed on the surface of the steel pipe pile 100 with the support shaft, as shown in FIG. 13, according to the first embodiment of the present invention. The mooring pile is constructed using the steel pipe pile 100, and various water structures are constructed on the top thereof.

The process of constructing the steel pipe pile according to the fifth embodiment of the present invention is performed in the same manner as the process of constructing the steel pipe pile according to the first embodiment. However, according to the fifth embodiment is made in the sea or the water of the river, as shown in Figure 15 is inserted into the upper end of the steel pipe pile 100 protrudes above the water surface (20).

In addition, the water member 500 according to the fifth embodiment of the present invention is connected to the upper end of the support portion 510 and the support portion 510 fastened to the plurality of steel pipe piles 100, as shown in FIG. The base portion 520 is mounted. That is, the upper end of the plurality of steel pipe pile 100 is connected along the edge of the base portion 520 of the flat panel shape, which is connected to the steel pipe 110 and the base portion 520 through the support 510.

Here, the base portion 520 may be made of a material that can float on the surface by buoyancy, or may be provided with floating means (not shown) such as expanded poly-styrene (EPS) or hollow floating balls. . Various types of water structures as shown in FIG. 13 may be installed on the base 520.

The support part 510 is configured to support the base part from the lower side of the base part 520 and is inserted into each of the plurality of steel pipes 110 to support the base part 520.

On the other hand, while the steel pipe pile 100 is fixed to the ground, the receiving member 500 flows along the water surface, so that the support member 510 can be flowed up and down together in accordance with the vertical flow of the water surface, ) Is configured to slide in the vertical direction in the steel pipe pile (100). That is, a sliding member 150 such as a ball is provided between the inner wall of the steel pipe 110 and the outer wall of the support part 510 so that the base part 520 may be raised or lowered as the surface of the steel pipe 110 rises or falls. The support 510 is slid up and down on the inner wall of the steel pipe 110 so as to.

Since the steel pipe pile 100 is firmly fixed to the ground 10 of the water 20 in the above water structure, the stability of the water structure can be sufficiently secured.

Example 6

A sixth embodiment of the present invention relates to a seismic-proof house and a construction method thereof which are constructed to be safe from earthquakes using the steel pipe pile according to the first embodiment.

16 is a front sectional view showing a seismic housing according to a sixth embodiment of the present invention, Figure 17 is a cross-sectional view showing a slab fixed state of the seismic housing according to the sixth embodiment of the present invention, Figure 18 is 6 is a cross-sectional view showing a steel pipe pile structure of a seismic house according to the sixth embodiment.

As illustrated in FIG. 16, the seismic housing 600 according to the sixth embodiment of the present invention has a plurality of steel pipe piles 100 penetrated into the ground 10 to a predetermined depth with a supporting shaft on the ground surface thereof. The slab 610 is formed, and the interlayer 620 and the roof slab 630 are formed along the outer wall (not shown) at predetermined intervals.

Here, the steel pipe pile 100 is used the steel pipe pile 100 according to the first embodiment of the present invention.

The slab includes a foundation slab 610 which forms a foundation floor of a building based on the steel pipe pile 100 protruding to the ground surface, and at least one interlayer slab 620 and a roof slab 630 formed at a predetermined height of the foundation slab. ), The slabs are constructed by a general reinforced concrete method. That is, the steel pipe pile 100 is constructed as a reinforcing bar of the mesh structure, the concrete is poured between the slabs are formed.

The slab is attached to and fixed to the steel pipe pile, but the foundation slab 610 according to the embodiment of the present invention is spaced apart from the steel pipe pile 100, there is a buffer pad 640 for the buffering action therebetween.

That is, as shown in FIG. 17, a rubber or silicone elastic pad 640 is wound around the steel pipe pile 100 to a predetermined thickness, and concrete is poured along the outer circumference thereof to form the foundation slab 610. Form. By such a structure, it is possible to alleviate the shock transmission between the foundation slab 610 and the steel pipe pile 100 generated by the earthquake.

On the other hand, the ground (10) is a steel pipe pile according to the first embodiment of the present invention is inserted into the earthquake-resistant support shaft, and in the ground in a rectangular steel box (steel box) or steel pipe concrete (SRC: Steel Reinforced Concrete) Can be configured.

That is, referring to the column cross-section on the ground forming the support shaft with reference to Figure 18, as shown in (A) is composed of a steel pipe pile of a shock-resistant, or as shown in (B) a predetermined height of the foundation slab 610 Square steel box 160 is fastened to the end of the steel pipe pile 100 that protrudes to form a pillar on the ground, as shown in (C) square along the outer circumferential surface of the steel pipe pile 100 Steel pipe concrete on which the concrete concrete 170 is poured may form a pillar on the ground. Here, the steel box 160 may be fixed to the end of the steel pipe pile 100 by means of bolting or the like on the upper side of the foundation slab 610.

The seismic housing structure as described above is simpler in construction than the conventional structure and can significantly reduce the construction cost, has a primary shock resistance by the steel pipe piles, the secondary pads by inserting a buffer pad between the steel pipe piles and the foundation slabs As it has a seismic resistance can be secured excellent earthquake resistance.

On the other hand, in the seismic housing according to the sixth embodiment of the present invention, the steel pipe pile is used as the steel pipe pile according to the first embodiment, a general steel pipe pile may be used that is not provided with a tip expansion device in the front end portion.

As described above, the steel pipe pile according to the first embodiment of the present invention as a support shaft, various structures such as bridges, retaining walls, water floating structures, and seismic housing can be stably constructed at a low cost. In addition, although described with reference to the embodiments in the present invention, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Claims

A steel pipe pile in which at least two ribs are radially fixed to the outside of the hollow cylindrical steel pipe tip, and a donut-shaped expansion plate having a diameter larger than the steel pipe is fixed to the bottom of the rib;

Mold support beam stacked on top of the steel pipe pile;

A composite beam stacked on the mold support, the composite beam including a first beam, a second beam stacked on top of the first beam, and a padding plate attached to upper and lower ends of the first beam and lower ends of the second beam; And

Including; a porous plate laminated on top of the composite beam;

The steel pipe pile is fixed and supported by the concrete mixed with the antirust admixture in the excavation hole of the ground,

And the composite beam is fastened by bolts passing through the first beam, the second beam, and the additional joint plate.
At least two ribs are radially fixed to the outside of the hollow cylindrical steel pipe tip portion, the bottom of the rib is a steel pipe pile is fixed to the donut-shaped expansion plate having a diameter larger than the steel pipe,

The lower end of the steel pipe pile is inserted into the ground and fixed by concrete,

Retaining wall structure of the incision, characterized in that the upper end of the steel pipe pile is connected to each other by a reinforcing member and the concrete layer.
At least two ribs are radially fixed to the outside of the end of the hollow cylindrical steel pipe, a donut-shaped expansion plate having a diameter larger than that of the steel pipe is fixed to the bottom of the rib, and the '⊂' shaped guide on the outside of the steel pipe Steel pipe piles with rails symmetrically fixed to each other,

The bottom buried portion of the steel pipe to which the ribs and the expansion plate is fixed is fixed by a concrete layer in the ground,

An earth plate is sequentially inserted into the guide rail, and the top of the plurality of steel pipe retaining wall structures, characterized in that configured to be connected to each other by a connecting member.
A steel pipe pile in which at least two ribs are radially fixed to the outside of the hollow cylindrical steel pipe tip, and a donut-shaped expansion plate having a diameter larger than the steel pipe is fixed to the bottom of the rib; And

It comprises a plate-like base portion for contacting at the water surface and a variety of structures on the top and a support portion inserted into the inside of the steel pipe to support the base portion, the water receiving member is fastened to the upper end of the steel pipe pile;

The lower end of the steel pipe pile is embedded in the excavation hole of the underwater ground, and is fixedly supported on the ground by the concrete layer placed in the excavation hole,

An upper end portion of the steel pipe pile protrudes above the water surface, characterized in that the water member is configured to be fastened.
The method of claim 4, wherein

An aqueous structure is provided between the inner wall of the steel pipe and the outer wall of the support portion is provided with a sliding member to enable the support portion to flow up and down, so that the base portion flows up and down according to the height of the water surface by buoyancy.
In a seismic housing structure in which the foundation slabs, interlayer slabs and roof slabs are formed on the ground with a plurality of steel pipe piles introduced into the ground,

The steel pipe pile is at least two ribs are radially fixed to the outer side of the bottom of the hollow cylindrical steel pipe, the end portion of the rib is inserted into the excavation hole in the base of the donut-shaped expansion plate is poured concrete,

The foundation slab is formed by a reinforced concrete method to form a foundation floor based on the steel pipe pile protruding to the ground surface,

Between the steel pipe pile and the foundation slab is provided with a shock absorbing pad made of rubber or silicon to mitigate the impact,

A seismic housing structure, characterized in that configured to be provided with earthquake resistance.
The method of claim 6,

The support shaft on the upper side of the foundation slab is formed of a steel box (Steel Box) of the rectangular shape is integrally connected with the upper end of the steel pipe pile, or steel pipe concrete (SRC) in which concrete is poured in a square shape along the outer circumferential surface of the steel pipe pile Seismic housing structure, characterized in that consisting of.