Construction method of one-side form bracing for underground structure sidewalls

A single-side support formwork and underground structure technology, applied to underwater structures, infrastructure engineering, artificial islands, etc., can solve problems such as difficult maintenance, difficult concrete pouring of side walls, and inability to construct, so as to ensure construction quality and safety , Reduce the amount of construction work, shorten the construction period

Inactive Publication Date: 2013-04-24
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emergence of underground diaphragm walls and internal support systems has brought considerable development to deep foundation pit engineering, and at the same time put forward higher technical requirements for side wall construction, especially the amount of concrete poured at one time for the side walls of subway station structures. Large, the side wall formwork can only use one-side support formwork, if the traditional full hall support system is used, there will be problems such as difficulty in pouring side wall concrete, difficult maintenance, long turnover period of formwork and support, and more materials
At the same time, due to the erection of the full hall frame, other processes in the foundation pit cannot be constructed

Method used

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  • Construction method of one-side form bracing for underground structure sidewalls
  • Construction method of one-side form bracing for underground structure sidewalls

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Embodiment Construction

[0020] The single-side support formwork structure of the side wall of the underground structure of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Such as figure 1 , figure 2 As shown, the unilateral formwork structure of the side wall of the underground structure includes a formwork 12 , an underground continuous wall 1 adjacent to the formwork 12 , connecting steel bars 15 and anti-sealing bolts 16 .

[0022] The template 12 includes a first side 121 close to the underground diaphragm wall and a second side 122 away from the underground diaphragm wall. One end of the connecting steel bar 15 is fixedly connected to the underground diaphragm wall, usually by implanting in the diaphragm wall or welding with the main reinforcement of the diaphragm wall. , the other end is welded and fixed to one end of the anti-pull water-stop bolt 16, and the other end of the anti-pull water-stop bolt 16 passes through the first si...

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Abstract

The invention discloses a construction method of one-side form bracing for underground structure sidewalls. The method includes the steps of installing a form which comprises a first side and a second side, with the first side close to an underground diaphragm wall; fixing one end of a waterproof tie bolt on the underground diaphragm wall through a connecting rebar; making a hole on the form, allowing the other end of the waterproof tie bolt to penetrate through the first side of the form and extend out of the second side of the form, and fixing with a nut on the second side; installing a plurality of form bracing structures according to stress need, casting sidewall concrete, and completing one-side form bracing for the underground structure sidewalls.

Description

technical field [0001] The invention relates to a construction method of a formwork structure, in particular to a construction method of a side wall of an underground structure to formwork on one side. Background technique [0002] With the expansion of my country's construction field to underground space, deep foundation pit engineering is also developing in the direction of ultra-deep, super-large, complex, and multi-form. The construction process is becoming more and more complicated and the construction difficulty is gradually increasing. The emergence of underground diaphragm walls and internal support systems has brought considerable development to deep foundation pit engineering, and at the same time put forward higher technical requirements for side wall construction, especially the amount of concrete poured at one time for the side walls of subway station structures. Large, the side wall formwork can only use one-side support formwork, if the traditional full hall s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/045
Inventor 吴天凯亓立刚郭凯王海崔爱珍位英超
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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