Assembly type recyclable deep foundation pit supporting system and construction method thereof

A technology of deep foundation pit support and construction method, which is applied in basic structure engineering, excavation, sheet pile wall, etc., can solve the problems of unprovided and unrecyclable materials, and achieves low cost, environmental protection and stability. Good results

Active Publication Date: 2017-09-22
河北建科唐秦建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above technologies have not given specific details on how to make the construction method of the deep foundation pit support system simple, fast, safe and reliable, and the materials can be repeated to solve the problem of non-recyclable materials in the existing deep foundation pit support system. guidance program

Method used

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  • Assembly type recyclable deep foundation pit supporting system and construction method thereof
  • Assembly type recyclable deep foundation pit supporting system and construction method thereof
  • Assembly type recyclable deep foundation pit supporting system and construction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Embodiment 1: as figure 1 as shown, figure 1 Mark A represents step ①, which is to form a row of vertical holes, and place a vertical support in each vertical hole; mark B represents step ②, which is to excavate the first earthwork to form the first anchor hole or Anchor cable hole, that is, the first anchor (cable) hole; mark C represents step ③, that is, the second anchor (cable) hole is formed, and the recyclable anchor (cable) is lowered (put in) and grouted ; Mark D represents step ④, that is, the first transverse support beam is installed at the anchor rod (cable) position of step 2, and prestress is applied, and the second transverse support beam is installed at the anchor rod (cable) position of step ③, and prestress is applied. Stress; mark E represents step ⑤, that is, install the first layer of vertical baffle between the first horizontal support beam and the second horizontal support beam formed in step ④, for the first anchor rod or anchor cable, for the s...

Embodiment 2

[0041] Embodiment 2: as figure 1 , figure 2 , image 3 , Figure 4 As shown, the assembleable and recyclable deep foundation pit support system of the present invention has multiple vertical supports 1 located in the soil body of the side wall of the foundation pit and whose outer wall is aligned with the side wall of the foundation pit, and located in the multi-channel vertical One of the multiple horizontal support beams 2 on the outside of the support body and limiting the multiple vertical support bodies, multiple vertical baffles (or multi-layer vertical baffles) 3, anchor rods and anchor cables 4 , the number of the anchor rods and the anchor cables is multiple (that is, one of the two support members of the plurality of anchor rods and the plurality of anchor cables is used). Multiple transverse support beams lean against the side walls of the foundation pit. Every transverse support beam 2 is all made of a plurality of channel steel sections, the length of each ch...

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Abstract

The invention relates to an assembly type recyclable deep foundation pit supporting system and a construction method thereof. The construction method comprises the following steps: enabling a row of vertical holes to be formed in the ground, and placing a vertical supporting body in each of the vertical holes to form a plurality of vertical supporting bodies; performing the first step earth excavation, enabling first anchor bolt holes or anchor cable holes to be formed in the inner sides of the foundation pit, placing anchor bolts or anchor cables, and performing cement grouting; enabling second anchor bolt holes or anchor cable holes to be formed, placing anchor bolts or anchor cables, and performing cement grouting; mounting first transverse support beams, applying a prestressing force, mounting second transverse support beams, and applying a prestressing force; mounting a first layer of vertical baffles between the first and second transverse support beams, and applying a prestressing force; repeating the steps to form the plurality of transverse support beams; and performing backfilling on the foundation pit and dismantling. The invention further provides the assembly type recyclable deep foundation pit supporting system which has the benefits as follows: the construction is simple, convenient, quick, safe and reliable, the materials can be used repeatedly and can completely replace conventionally used disposable piles, a large amount of steel bars and concrete are saved, and the problem that the materials in the conventional deep foundation pit supporting system cannot be recycled is solved.

Description

technical field [0001] The invention relates to a construction method of a foundation pit support system, in particular to a construction method of an assembleable and recoverable deep foundation pit support system. The invention also relates to a foundation pit support system, in particular to an assembleable and recoverable deep foundation pit support system. Background technique [0002] In the process of excavating deep foundation pits, in order to ensure the safety and reliability of deep foundation pits and prevent casualties and property losses caused by the collapse of deep foundation pits, it is often necessary to support the soil around the excavation to ensure the safety of deep foundation pits and surrounding buildings. (structures), underground pipe network, roads and other aspects of safety. The conventional construction method is to use reinforced concrete row piles or cement-soil row piles or steel sheet piles or soil nail retaining walls on the periphery of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D5/76
CPCE02D5/76E02D17/04
Inventor 王维玉高幸范晓雨薛海鹏刘英辉赵拓李仕良王红刘国华田少义
Owner 河北建科唐秦建筑科技有限公司
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