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Improved deep foundation pit external supporting structure

A technology for supporting structures and deep foundation pits, which is applied in infrastructure engineering, excavation, construction, etc., can solve the problems of long construction period, high cost of deep foundation pit supporting structures, and difficult construction.

Pending Publication Date: 2018-10-19
JIANGXI JIYE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For this reason, the technical problem to be solved by the present invention is that the deep foundation pit support structure in the prior art has high cost, great construction difficulty and long construction period, so an improved deep foundation pit with low construction cost, low construction difficulty and short construction period is proposed. Foundation Pit Support Structure

Method used

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  • Improved deep foundation pit external supporting structure
  • Improved deep foundation pit external supporting structure
  • Improved deep foundation pit external supporting structure

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The improved deep foundation pit external support structure of this embodiment includes: an annular retaining wall structure 1, which is used to realize the function of foundation pit retaining soil and / or water stop; wherein, the annular retaining wall structure includes several interconnected Retaining wall part; respectively realize soil retaining and / or water stop in different directions; wherein, it also includes: several supporting structures, each of which is arranged in the soil outside the foundation pit of the corresponding retaining wall part several tensile parts, each of which is connected with the corresponding supporting structure and the retaining wall part, and is used to transfer the soil pressure towards the inner side of the foundation pit to the said retaining wall part. On the support structure: several pressure-bearing components, each of which is supported on two of the support structures corresponding to the adjacently arranged two retaining wall...

Embodiment 2

[0034] Such as figure 2 As shown, the improved deep foundation pit external support structure of this embodiment, wherein, the annular retaining wall structure is rectangular, including a first retaining wall part 2, a second retaining wall part 3, a third retaining wall part 4 and The fourth retaining wall part 41; surrounds the periphery of the foundation pit A, the support structure includes a first support structure 5, a second support structure 51, a third support structure 52 and a third support structure 53, the first support structure 53, respectively A retaining wall part 2, the second retaining wall part 3, the third retaining wall part 4 and the fourth retaining wall part 41 correspond; The tensile member 61, the third tensile member 62 and the fourth tensile member 63 are connected with the first support structure 5, the second support structure 51, the third support structure 52 and the third support structure respectively. structure 53, and at the same time res...

Embodiment 3

[0038] Such as image 3 As shown, the difference between the improved deep foundation pit external support structure of this embodiment and embodiment 2 is that it also includes: a support assembly, the retaining wall corresponding to the pressure-bearing component and the pressure-bearing component respectively The partial connection is used to transfer the pressure received by the pressure-bearing component to the corresponding part of the retaining wall, so as to support the pressure-bearing component. The support assembly includes: a first support rod 14, one end of which is connected to the pressure bearing rod, and the other end is connected to the corresponding part of the retaining wall, which is used to direct the force received by the retaining wall part towards the inner side of the foundation pit. The soil pressure is transferred to the pressure-bearing rods, thereby forming a pull on the retaining wall part; the second support rod 15 is connected with two pressure...

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Abstract

The invention provides an improved deep foundation pit external supporting structure. The improved deep foundation pit external supporting structure comprises an annular retaining wall structure, a plurality of supporting structures, a plurality of pulling components and a plurality of pressure bearing components, wherein the annular retaining wall structure is used for achieving the soil retaining and / or water stop effects on a foundation pit and comprises a plurality of retaining wall parts connected mutually; the plurality of retaining wall parts are used for implementing soil retaining and / or water stop in different directions; each supporting structure is arranged in a soil body on the outer side of the foundation pit of the corresponding retaining wall part; each pulling part is connected with the corresponding supporting structure and the corresponding retaining wall part and is used for transferring the pressure, borne by the retaining wall part, of the soil body facing the inner side of the foundation pit to the corresponding supporting structure; each pressure bearing component is supported on the two supporting structures corresponding to the two adjacent retaining wallparts and is used for transferring force, borne by one supporting structure, facing the inner side of the foundation pit to another supporting structure and applying component force facing the outer side of the foundation pit to the supporting structure. The improved deep foundation pit external supporting structure is simple in structure, low in manufacturing cost, easy to construct and short inconstruction period.

Description

technical field [0001] The application relates to a deep foundation pit support structure, in particular to an improved deep foundation pit external support structure. Background technique [0002] With the increasing intensity of underground space development and utilization, the importance and technical difficulty of deep foundation pit support are also increasing day by day. However, the current construction techniques are generally limited to row piles, soil nails, gravity retaining walls, etc. When the depth of the pit increases or the condition of the soil layer is not ideal, the following methods are often used: the double-row pile support structure requires the construction of multiple rows of piles, resulting in excessive cost and long construction period. It is difficult to work together between the rows; for the method of adding anchor cables (rods) to row piles, since one end of the usual anchor cables (rods) is connected to the row piles, and the other end is h...

Claims

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Application Information

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IPC IPC(8): E02D17/04
CPCE02D17/04E02D2300/0029
Inventor 刘献刚刘小檀刘斌
Owner JIANGXI JIYE SCI & TECH
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