A support pile inter-pile sealing structure

Abstract

The utility model relates to a kind of supporting pile inter-pile plugging structures, including support steel sheet, concrete barrier wall, cotton quilt sandbag, drain pipe, the both sides of support steel sheet are welded in reinforcing cage in supporting pile, concrete barrier wall is poured between the back of support steel sheet and two adjacent supporting piles, cotton quilt sandbag is placed in the gap between two adjacent supporting piles, concrete barrier wall and original sand layer, drain pipe is clamped between cotton quilt sandbag, several evenly distributed through-holes are set up on the pipe wall of drain pipe.Affirmative effect is: three layers of barrier structure are formed by support steel sheet, concrete barrier wall, cotton quilt sandbag cooperation, prevent the original sand layer between two adjacent supporting piles loose, soil erosion, improve the stability of the support structure around foundation pit;Water flowing in original sand layer is discharged using drain pipe clamped between cotton quilt sandbag, reduce the pressure of groundwater on support steel sheet and concrete barrier wall.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a sealing structure between support piles. Background Technology

[0002] With the development of urban construction, more and more high-rise buildings, underground parking lots, subways and other projects require deep foundation pit excavation. To ensure the stability of the foundation pit and the safety of the surrounding environment, support pile structures are widely used.

[0003] However, during the excavation of the foundation pit, the seepage of groundwater and the effect of earth pressure may cause the soil between adjacent support piles to loosen and be lost, thus affecting the overall stability of the support structure. Therefore, measures need to be taken to seal the original sand layer between the support piles. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned problems in the existing technology and provide a sealing structure between support piles.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A joint sealing structure for support piles includes:

[0007] Supporting steel plates are welded to the reinforcing cage in the support piles on both sides.

[0008] A concrete barrier wall is cast between the back of the supporting steel plate and two adjacent retaining piles.

[0009] The cotton quilts and sandbags were stacked in the gaps between two adjacent support piles, concrete barrier walls and the original sand layer.

[0010] The drain pipe is sandwiched between the cotton quilt and sandbags, and several evenly distributed through holes are opened on the pipe wall.

[0011] The supporting steel plate includes a rectangular steel plate body, a transverse reinforcing bar 1, and a connecting reinforcing bar 2. Multiple parallel reinforcing bars 1 are welded from top to bottom on the front of the steel plate body. One end of the reinforcing bar 2 is welded to the front of the steel plate body, and the other end of the reinforcing bar 2 is welded to the reinforcing cage of the support pile.

[0012] The thickness of the concrete barrier wall is 100mm to 200mm.

[0013] The drainage pipe is filled with geotextile or cotton quilt.

[0014] The supporting steel plates consist of multiple sets, which are arranged sequentially from bottom to top and welded to the reinforcing cages in the support piles on both sides.

[0015] Each set of supporting steel plates has drainage pipes installed at the bottom and top.

[0016] The beneficial effects of this utility model are: by using a combination of supporting steel plates, concrete barrier walls, and cotton quilts and sandbags to form a three-layer barrier structure, the original sand layer between two adjacent support piles is prevented from loosening and water and soil loss is prevented, thereby improving the stability of the support structure around the foundation pit; the drainage pipe sandwiched between the cotton quilts and sandbags is used to drain the water flowing out of the original sand layer, thereby reducing the pressure of groundwater on the supporting steel plates and concrete barrier walls. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention, but do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the inter-pillar sealing structure in Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the steel plate body in Embodiment 1 of this utility model;

[0020] Figure 3 This is a schematic diagram of the drain pipe in Embodiment 1 of this utility model;

[0021] Figure 4 This is a schematic diagram of the inter-pillar sealing structure in Embodiment 2 of this utility model;

[0022] Figure 5 This is a schematic diagram of the steel plate body in Embodiment 2 of this utility model;

[0023] Figure 6 This is a schematic diagram of the drain pipe in Embodiment 2 of this utility model;

[0024] The following are the labels in the diagram: 1. Supporting steel plate; 11. Steel plate body; 12. Reinforcing bar 1; 13. Reinforcing bar 2; 2. Concrete barrier wall; 3. Cotton quilt and sandbag; 4. Drainage pipe; 41. Through hole; 42. Geotextile; 43. Cotton quilt; 100. Support pile; 101. Reinforcing cage; 200. Original sand layer. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] like Figures 1 to 3 The first embodiment shown includes a sealing structure between support piles, comprising: a supporting steel plate 1, a concrete barrier wall 2, a cotton quilt and sandbags 3, and a drainage pipe 4.

[0027] The two sides of the supporting steel plate 1 are welded to the reinforcing cage 101 in the support pile 100. Specifically, the supporting steel plate 1 includes a rectangular steel plate body 11, transverse reinforcing bars 12, and connecting reinforcing bars 13. Multiple parallel reinforcing bars 12 are welded from top to bottom on the front of the steel plate body 11. One end of the reinforcing bars 13 is welded to the front of the steel plate body 11, and the other end of the reinforcing bars 13 is welded to the reinforcing cage 101 of the support pile 100. The thickness of the steel plate body 1 is 3mm, and the reinforcing bars 12 and 13 are cut from straight steel bars with a diameter of 16mm.

[0028] The concrete barrier wall 2 is cast between the back of the supporting steel plate 1 and two adjacent support piles 100. The concrete barrier wall 2 is made of C20 concrete and has a thickness of 150mm.

[0029] Three layers of cotton quilts and sandbags were placed in the gap between two adjacent support piles 100, the concrete barrier wall 2, and the original sand layer 200.

[0030] A three-layer barrier structure is formed by supporting steel plates, concrete barriers, and cotton quilts and sandbags to prevent the original sand layer between two adjacent support piles from loosening and causing soil erosion, thereby improving the stability of the support structure around the foundation pit.

[0031] A drainage pipe 4 is sandwiched between cotton quilts and sandbags 3. Several evenly distributed through holes 41 are formed in the wall of the drainage pipe 4. Geotextile 42 is filled inside the drainage pipe 41. The drainage pipe is made of PVC pipe with a diameter of 50mm and a wall thickness of 3mm. The drainage pipe, sandwiched between the cotton quilts and sandbags, drains water flowing from the original sand layer, reducing the pressure of groundwater on the supporting steel plate and concrete barrier wall.

[0032] like Figures 4 to 6 The second embodiment shown is a sealing structure between support piles, comprising: a supporting steel plate 1, a concrete barrier wall 2, a cotton quilt and sandbags 3, and a drainage pipe 4.

[0033] The two sides of the supporting steel plate 1 are welded to the reinforcing cage 101 in the support pile 100. Specifically, the supporting steel plate 1 includes a rectangular steel plate body 11, transverse reinforcing bars 12, and connecting reinforcing bars 13. Multiple parallel reinforcing bars 12 are welded from top to bottom on the front of the steel plate body 11. One end of the reinforcing bars 13 is welded to the front of the steel plate body 11, and the other end of the reinforcing bars 13 is welded to the reinforcing cage 101 of the support pile 100. The thickness of the steel plate body 11 is 3mm, and the reinforcing bars 12 and 13 are cut from straight steel bars with a diameter of 16mm.

[0034] The concrete barrier wall 2 is cast between the back of the supporting steel plate 1 and two adjacent support piles 100. The concrete barrier wall 2 is made of C20 concrete and has a thickness of 200mm.

[0035] To increase the strength of the concrete barrier wall 2, a steel mesh is added to the concrete barrier wall 2, which is welded to the steel cage 101 of the support pile 100 on both sides.

[0036] Three layers of cotton quilts and sandbags were placed in the gap between two adjacent support piles 100, the concrete barrier wall 2, and the original sand layer 200.

[0037] The drain pipe 4 is sandwiched between the cotton quilt and sandbag 3, and several evenly distributed through holes 41 are opened on the wall of the drain pipe 4. The drain pipe is filled with cotton quilt 43. The drain pipe 4 is made of PVC pipe with a diameter of 30mm and a wall thickness of 2mm.

[0038] There are multiple sets of supporting steel plates 1, which are arranged sequentially from bottom to top and welded to the reinforcing cages 101 in the support piles 100 on both sides.

[0039] Each set of supporting steel plates 1 is equipped with drainage pipes 4 at the bottom and top respectively, which drain water in layers to prevent excessive water accumulation in the original sand layer 200 and cotton quilt sandbags 3 near the bottom of the support pile 100, which would create a large lateral pressure on the bottom of the concrete barrier wall 2 and the bottom supporting steel plates 1, and squeeze the bottom of the concrete barrier wall 2 and the bottom supporting steel plates 1.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sealing structure between support piles, characterized in that, include: A supporting steel plate, the two sides of which are welded to the reinforcing cage in the support pile; A concrete barrier wall, which is cast between the back of the supporting steel plate and two adjacent retaining piles. The cotton quilts and sandbags are stacked in the gaps between two adjacent support piles, concrete barrier walls and the original sand layer. A drain pipe is sandwiched between cotton quilts and sandbags, and the drain pipe has several evenly distributed through holes on its wall.

2. The inter-pillar sealing structure according to claim 1, characterized in that: The supporting steel plate includes a rectangular steel plate body, a first type of transverse reinforcing bar, and a second type of connecting bar. Multiple parallel first type bars are welded to the front of the steel plate body from top to bottom. One end of the second type of reinforcing bar is welded to the front of the steel plate body, and the other end of the second type of reinforcing bar is welded to the reinforcing cage of the support pile.

3. The inter-pillar sealing structure according to claim 1, characterized in that: The thickness of the concrete barrier wall is 100mm~200mm.

4. The inter-pillar sealing structure according to claim 1, characterized in that: The drain pipe is filled with geotextile or cotton quilt.

5. The inter-pillar sealing structure according to claim 1, characterized in that: The supporting steel plates are in multiple sets, arranged sequentially from bottom to top and welded to the reinforcing cages in the support piles on both sides.

6. The inter-pillar sealing structure according to claim 5, characterized in that: Each set of supporting steel plates is equipped with a drain pipe at the bottom and top respectively.

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