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Stage construction basement support change method using underground continuous wall as separation containment

A technology for underground diaphragm walls and basements, which can be used in artificial islands, water conservancy projects, underwater structures, etc., and can solve problems such as construction troubles.

Active Publication Date: 2014-06-11
ZHONGTIAN CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of reverse work is usually adopted, that is, the underground diaphragm wall is gradually removed from top to bottom as the construction progresses, so that the front and later basements are connected, and the construction is more troublesome.

Method used

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  • Stage construction basement support change method using underground continuous wall as separation containment
  • Stage construction basement support change method using underground continuous wall as separation containment
  • Stage construction basement support change method using underground continuous wall as separation containment

Examples

Experimental program
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Embodiment Construction

[0019] Such as Figure 1 to Figure 8 Shown, a kind of underground diaphragm wall is used as the basement replacement support method of staged construction, comprising the following steps:

[0020] Step 1: Construct a separate enclosure structure with the underground diaphragm wall 1 as the main body between the basement of the first phase and the basement of the second phase, and pre-embed the main beam 5 and the secondary beam 6 of the floor structure on the underground diaphragm wall 1. Embedded shaped steel 2, the thickness of the embedded shaped steel 2 is equal to the wall thickness of the underground diaphragm wall 1;

[0021] Step 2: During the first-phase basement replacement construction, weld the same type of replacement steel 3 at one end of the pre-embedded steel 2, and pour the other end of the replacement steel 3 into the basement floor 4 of the first-phase basement, and the basement floor slab of the first-phase basement. 4. Reserve the connecting steel bar 7 o...

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Abstract

The invention provides a stage construction basement support change method using an underground continuous wall as separation containment. The method comprises the following steps that: 1, a separation containment structure using the underground continuous wall as a body is built, and in addition, pre-buried sectional steel is buried on the underground wall; 2, first-stage basement support change is carried out, support change sectional steel is welded at one end of the pre-buried sectional steel, and the other end of the support change sectional steel is cast with an underground slab of the first-stage basement; 3, secondary second-stage basement support change is carried out, support change sectional steel is welded at the other end of the pre-buried sectional steel in the same way, and a basement slab of the second-stage basement is cast at the other end of the support change sectional steel; 4, the underground continuous wall is dismounted, the pre-buried sectional steel is preserved, the connecting steel bars are tied and bundled, and concrete is cast, so the first-stage basement and the second-stage basement are connected. The support change problem of the front-stage construction basement and the back-stage construction basement can be perfectly solved, the support change effect is good, in addition, the basement structure can be smoothly built, and the construction is convenient.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a brace replacement method for a staged construction basement with an underground continuous wall as partition enclosure. Background technique [0002] In the basement construction of a building construction project, due to reasons such as site, safety or funds, it is often necessary to carry out staged construction. The underground diaphragm wall is often used as a separate enclosure structure for staged construction. into one. In order to ensure that the basement can be connected to each other as a whole, it is necessary to deal with the problem of changing the support in the early and late construction parts. At present, the method of reverse work is usually adopted, that is, the underground diaphragm wall is gradually removed from top to bottom as the construction progresses, so that the front and later basements are connected, and the construction is more troublesome. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/045E02D29/02
Inventor 刘玉涛曹跃军李小玥陈正立
Owner ZHONGTIAN CONSTR GROUP
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