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Construction method for integrally pouring inverted arch concrete by matching trestle with top formwork

A construction method and integral pouring technology, which is applied in earthwork drilling, wellbore lining, tunnel lining, etc., can solve the problems that the concrete cannot be formed according to the designed shape, and achieve the effect of simple method

Active Publication Date: 2012-08-15
CHINA RAILWAY 12TH BUREAU GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, in order to solve the problem that the concrete cannot be formed according to the designed shape during the pouring of tunnel inverted arch concrete, it is necessary to design a special top form and trestle bridge for tunnel inverted arch concrete pouring

Method used

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  • Construction method for integrally pouring inverted arch concrete by matching trestle with top formwork
  • Construction method for integrally pouring inverted arch concrete by matching trestle with top formwork
  • Construction method for integrally pouring inverted arch concrete by matching trestle with top formwork

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Embodiment 1

[0023] Such as figure 1 , 2 , a kind of trestle bridge shown in 3,4,5 coordinates the top form integral pouring inverted arch concrete construction method, comprises the following steps:

[0024] (1) Fabrication of the top mold structure: use I-shaped steel to weld the top mold main frame 1, and the top mold main frame and each template 6 pass through the side mold oil top 2, the bottom mold oil top 3, and the top mold structure to lift the oil top 12 connections, the top mold tail end is equipped with a top mold structure walking wheel 4, wherein the templates 6 are connected by a rotating shaft, the side mold oil top 2, the bottom mold oil top 3, and the top mold structure lifting oil top 12 Controlled by the top mold telescopic oil roof control box 10 arranged between the top mold main frame 1 and the template 6;

[0025] (2) Manufacture of trestle structure: Weld the trestle main girder 18 with I-beam, weld the trestle steel plate 8 at the top of the trestle main girder ...

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Abstract

The invention discloses a construction method for integrally pouring inverted arch concrete by matching a trestle with a top formwork, which belongs to the construction method for pouring inverted arches concrete of tunnels and relates to the manufacture and utilization of top formworks and trestles. The construction method for integrally pouring inverted arch concrete by matching the trestle with the top formwork includes the steps of (1) manufacturing a top formwork structure; (2) manufacturing a trestle structure; (3) preparing: measurement locating, formwork locating, concreting and trestle displacing and positioning. The construction method for integrally pouring inverted arch concrete by matching the trestle with the top formwork is easy, capable of guaranteeing the concrete to be shaped as designed during the inverted arch concrete pouring process, and effectively guaranteeing the tunnel to be normally open to traffic during the inverted arch construction process.

Description

technical field [0001] The invention belongs to a tunnel inverted arch concrete pouring construction method, relates to the manufacture and use of a top form and a trestle bridge, and in particular relates to a construction method for integrally pouring inverted arch concrete with a trestle bridge and a top form. Background technique [0002] During the concrete pouring process of the inverted arch of the tunnel, because the shape of the inverted arch concrete is mostly arc-shaped, and the concrete slump is relatively large, it is difficult to control the shape of the concrete to meet the design requirements without installing a top form. At the same time, in order to ensure the normal traffic opening of the cave during the construction of the inverted arch, it is necessary to erect an inverted arch trestle bridge above the inverted arch. [0003] Therefore, in order to solve the problem that the concrete cannot be formed according to the designed shape during the pourin...

Claims

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Application Information

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IPC IPC(8): E21D11/10
Inventor 姜军唐智华刘章保
Owner CHINA RAILWAY 12TH BUREAU GRP
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