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Construction method and support system of assembleable and recoverable deep foundation pit support system

A deep foundation pit support and construction method technology, which is applied in the direction of foundation structure engineering, excavation, sheet pile walls, etc., can solve the problems of unresolved, non-recyclable materials, etc., achieve low cost, be conducive to environmental protection, and simple construction Effect

Active Publication Date: 2018-06-15
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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  • Construction method and support system of assembleable and recoverable deep foundation pit support system
  • Construction method and support system of assembleable and recoverable deep foundation pit support system
  • Construction method and support system of assembleable and recoverable deep foundation pit support system

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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

A construction method and support system for an assembleable and recyclable deep foundation pit support system. The construction method: form a row of vertical holes on the ground, and place a vertical support body in each vertical hole to form multiple vertical holes. To the support body; excavate the first step of earthwork, form the first anchor hole or anchor cable hole on the inner side of the foundation pit, put the anchor rod or anchor cable, and pour grout; form the second anchor hole or anchor cable hole, Put in the anchor rod or anchor cable, pour grout; install the first horizontal support beam, apply prestress, install the second horizontal support beam, apply prestress; install the first layer between the first and second horizontal support beams Add prestress to the vertical baffle; repeat the above steps to form multiple horizontal support beams; backfill and demolish the foundation pit. The invention also provides a support system. Its construction is simple, fast, safe and reliable, and the materials can be repeated. It can completely replace the conventional disposable piles, save a lot of steel bars or concrete, and solve the problem of non-recyclable materials in the existing deep foundation pit support system.

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 Patents(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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