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Underground cast-in-place concrete structure outer wall neck construction method

A technology for concrete structures and construction methods, which is applied to underwater structures, infrastructure engineering, artificial islands, etc., can solve the problem that the formwork process is difficult to meet the design requirements, and achieve the effect of controllable flatness and simple method.

Inactive Publication Date: 2008-09-17
TIANJIN CONSTR ENG MAIN CONTRACTING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to meet the design requirements with the existing formwork technology required by the specifications

Method used

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  • Underground cast-in-place concrete structure outer wall neck construction method
  • Underground cast-in-place concrete structure outer wall neck construction method
  • Underground cast-in-place concrete structure outer wall neck construction method

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] figure 1 Shown is a schematic diagram of the base plate and the neck of the outer wall poured by the existing method, in the figure: the outer reinforcement of the wall 1; the inner reinforcement of the wall 2; the waterproof steel plate 3; the neck of the outer wall 4; the foundation base 5;

[0018] In order to make the base plate of the underground foundation and the neck of the wall form at one time, the prior art adopts the method of lifting the formwork and supporting the formwork, see figure 2 , among the figure: basic reinforcing bar 10, scaffold pipe 9, first inner formwork 16, the first outer formwork 17, inner and outer formwork is made up of multi-layer board, square timber.

[0019] A kind of underground cast-in-place concrete structure external wall neck construction method of the present invention comprises the following steps: (see image 3 ) ...

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Abstract

The invention discloses an external wall neck construction method of the underground cast-in-situ concrete structure, which includes the following steps: (1) arranging reinforced bars, wall body external steel bars and wall body internal steel bars on a bedding course, arranging a first exterior sheathing composed of a multilayer board and a square timber outside the wall body external steel bars in the method of external suspended form supporting formwork; (2) arranging the first exterior sheathing composed of the multilayer board and the square timber inside and fixedly connecting with the wall body internal steel bars, arranging a water-stopping steel plate between the wall body external steel bars and the wall body internal steel bars; (3) casting the concrete and finishing the underground cast-in-situ concrete structure external wall neck construction. The method enables a calendering operation of the upper surface of a foundation plate through surface rolling mechanically or manually, and enables the wall foot of the wall neck to be conveniently rolled to achieve the process requirement of one-step operation of casting and rolling together and the effect of exposed concrete. The method is easy, practical and economic, and the flatness can be controlled.

Description

technical field [0001] The invention belongs to the field of construction engineering, in particular to a method for constructing an exterior wall neck of an underground cast-in-place concrete structure. Background technique [0002] In the construction of the external wall of the underground cast-in-place concrete structure, due to the requirements between processes and waterproof requirements, the following method shall be adopted in accordance with the requirements of the current code when constructing the underground foundation floor: leave a 300mm high wall neck on the upper surface of the foundation floor ( figure 1 ), the upper surface of the wall neck is a horizontal construction joint, and the setting of the wall neck adopts the formwork support method ( figure 2 ), that is, the formwork composed of multi-layer boards and square wood is supported above the bottom plate reinforcement through scaffolding pipes, and then concrete is poured to form the underground foun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/18E02D29/00E02D29/02
Inventor 王明明杨建国李忠雨翟树起娄维萍
Owner TIANJIN CONSTR ENG MAIN CONTRACTING
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