Construction Method of Combined Deep Foundation Pit Supporting Structure

A technology of deep foundation pit support and construction method, applied in the construction field of combined deep foundation pit support structure, can solve problems such as poor overall stability of the support system

Active Publication Date: 2021-04-23
SHENZHEN GONGKAN GEOTECHN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a construction method for a combined deep foundation pit support structure, aiming to solve the problem of poor overall stability of the support system in the deep foundation pit support in the prior art

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  • Construction Method of Combined Deep Foundation Pit Supporting Structure
  • Construction Method of Combined Deep Foundation Pit Supporting Structure
  • Construction Method of Combined Deep Foundation Pit Supporting Structure

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] In the drawings of this embodiment, the same or similar symbols correspond to the same or similar components; The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. Construction and operation, so the words describing the positional relationship in the drawings are only for illustrat...

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Abstract

The invention relates to the technical field of deep foundation pit support, and discloses a construction method for a combined deep foundation pit support structure, including a reinforcement cage and a lattice column. The construction steps are as follows: 1) forming column pile holes; 2) placing the reinforcement cage Hang it into the pile hole of the column, and correct it so that the reinforcement cage is in the center of the pile hole of the column, and then fix the reinforcement cage; 3) Put the lattice column into the pile hole of the column, and the lower part of the lattice column is embedded in the reinforcement cage Inside, the lowering distance of the lattice column is 2‑4 meters, and the lattice column and the steel cage are welded to form the first welding part; Welding again to form the second welding part; 5) lowering the whole formed by welding the reinforcement cage and the lattice column to the pile bottom elevation; 6) pouring concrete. Under the action of the reinforcement cage, the lattice column is not easy to cause deviation, which ensures the verticality and centering effect of the lattice column, thereby ensuring the pile quality of the cast-in-place pile and improving the overall stability of the support system.

Description

technical field [0001] The invention relates to the technical field of deep foundation pit support, in particular to a construction method of a combined deep foundation pit support structure. Background technique [0002] Deep foundation pit support refers to the support, reinforcement and protection measures adopted for the side wall of deep foundation pit and the surrounding environment in order to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit. [0003] At present, the supporting structure of deep foundation pits is composed of supporting column piles and supporting beams. The supporting column piles are divided into vertical columns and foundation piles at the bottom of the foundation pit. Cast-in-situ piles are used below the bottom of the pit, and the supporting columns are extended into the range of about 3 meters of the bottom-of-pit piles to form a support system for the deep foundation pit. [0004...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D5/36
CPCE02D5/36E02D17/04
Inventor 王志权游玲雷斌高升坚黄友武唐雪云雷帆洪雨娇
Owner SHENZHEN GONGKAN GEOTECHN GRP
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