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Support structure outside deep foundation pit

A support structure and external support technology, which is applied in basic structure engineering, excavation, construction, etc., can solve the problems of high cost, long construction period, and difficult construction of deep foundation pit support structures, so as to avoid poor water stop effect and save energy. Quantity, effect of preventing cracking

Pending Publication Date: 2018-11-02
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, thereby proposing a deep foundation pit support with low cost, low construction difficulty and short construction period structure

Method used

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  • Support structure outside deep foundation pit
  • Support structure outside deep foundation pit
  • Support structure outside deep foundation pit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, the external support structure of the deep foundation pit of this embodiment includes: an annular retaining wall structure 1, which is used to realize the function of earth retaining and / or water stop of the foundation pit A; wherein, the annular retaining wall structure 1 includes at least the first A retaining wall part 2, a second retaining wall part 3 and a third retaining wall part 4, the first retaining wall part 2 and the third retaining wall part 4 are connected to the second retaining wall part 3 respectively; The first retaining wall part 2, the second retaining wall part 3 and the third retaining wall part 4 respectively realize soil retaining and / or water sealing in different directions; and also include: a support structure 5 located at the annular retaining wall The outer side of the foundation pit of the structure 1; the tensile member 6 is connected with the support structure 5 and the second retaining wall part 3 respectively,...

Embodiment 2

[0039] Such as figure 2 As shown, the difference between the deep foundation pit external support structure of this embodiment and that of Embodiment 1 is that the pressure-bearing parts 7 are respectively connected to the middle parts of the first retaining wall part 2 and the third retaining wall part 4 , forming a support.

Embodiment 3

[0041] Such as image 3 As shown, the difference between the support structure outside the deep foundation pit of this embodiment and that of Embodiment 1 is that it also includes: a support assembly connected to the second retaining wall part 3 and the pressure-bearing member 7 respectively, for connecting the The pressure received by the pressure-bearing component 7 is transferred to the second retaining wall portion 3, so as to support the pressure-bearing component 7.

[0042] As a preferred embodiment, wherein, the tension member 6 is a tension rod; the pressure member 7 is a pressure rod; the support assembly includes: a first support rod 14, one end of which is connected to the pressure rod , the other end of which is connected to the second retaining wall part 3, and is used to transfer the soil mass pressure received by the second retaining wall part 3 toward the inside of the foundation pit to the pressure bearing rod, thereby forming a pair of The pulling of the se...

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Abstract

The invention provides a support structure outside a deep foundation pit. The support structure comprises an annular wall retaining structure, a support structure, a pull bearing member and a pressure-containing member; the annular wall retaining structure is used for retaining soil and / or water in the foundation pit; the annular wall retaining structure at least includes a first wall retaining part, a second wall retaining part and a third wall retaining part, and the first wall retaining part and the third wall retaining part are respectively connected with the second wall retaining part; the first wall retaining part, the second wall retaining part and the third wall retaining part can retain soil and / or water of different directions; the support structure is located on the outer side of the foundation pit of the annular wall retaining structure; the pull bearing member is connected with the support structure and the second wall retaining part respectively; the pressure-containing member is connected with the support structure and is partially connected with the first wall retaining part and the third wall retaining part. The support structure outside the deep foundation pit issimple in structure, so that low cost, low construction difficulty and short construction period are achieved.

Description

technical field [0001] The invention relates to a support structure for a deep foundation pit, in particular to an external support structure for a deep foundation pit. Background technique [0002] With the intensification 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; for the method of adding anchor cables (rods) to row piles, since one end of the usual anchor cables (rods) is connected to row piles, and the other end is horizontally inserted into...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04E02D2300/0029
Inventor 刘献刚章学良柯贤送
Owner JIANGXI JIYE SCI & TECH
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