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Construction method and system for conversion of immersed tube prefabricated roof reinforcement system

A system conversion and construction method technology, applied in artificial islands, water conservancy projects, infrastructure engineering, etc., can solve problems such as roof reinforcement construction, achieve high work efficiency, improve construction quality, and shorten construction time.

Active Publication Date: 2021-10-08
CCCC SECOND HARBOR ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method for the conversion of immersed tube prefabricated roof reinforcement system to solve the construction problem of immersed tube full-section prefabricated roof reinforcement

Method used

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  • Construction method and system for conversion of immersed tube prefabricated roof reinforcement system
  • Construction method and system for conversion of immersed tube prefabricated roof reinforcement system
  • Construction method and system for conversion of immersed tube prefabricated roof reinforcement system

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Effect test

Embodiment 1

[0047] like figure 1 As shown, the present invention provides a construction method for the transformation of steel bar system of immersed tube prefabricated roof. Self-expandable and self-propelled.

[0048] Include the following steps:

[0049] Step 1, such as Figure 4 and Figure 5 As shown, the construction content of segment n before the outer mold is demoulded

[0050] Step 1.1, Segment n+1 floor steel bar and vertical wall steel bar binding, after the bottom plate steel bar and vertical wall steel bar binding is completed, install the support frame 18 of the middle pipe gallery, the support frame 18 of the middle pipe gallery is made of section steel, and the support frame 18 of the middle pipe gallery The root is welded to the middle partition wall skeleton 19, and the center line of the support frame coincides with the center line of the immersed tube.

[0051] Step 1.2: After the binding of the steel bars on the bottom plate and the vertical wall of section n+1 i...

Embodiment 2

[0066] Construction systems for conversion of immersed tube prefabricated roof reinforcement systems, such as figure 2 and image 3 As shown, it includes: outer mold trolley 1, inner mold trolley 2, gallery trolley 3, reinforcement trolley 4 and spreader 5 for system conversion;

[0067] The inner mold trolley 2, the corridor trolley 3 and the reinforcement trolley 4 all adopt a walking mode, that is, they are pushed by their respective hydraulic systems, and their respective fixed legs 10 and movable legs 11 are mutually inverted. Way to walk, the inner mold trolley 2, corridor trolley 3 and reinforcement trolley 4 are all provided with a self-shrinkable support cylinder 12 and a self-shrinkable support screw 13.

[0068] Wherein the fixed support leg 10 and the movable support leg 11 walk in the way of mutual inversion, taking the inner mold trolley 2 as an example, specifically: 1. The movable support leg 11 oil cylinder lifts the cylinder, so that the movable support leg...

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Abstract

The invention discloses a construction method and system for the transformation of immersed tube prefabricated roof reinforcement system, which is characterized in that it comprises the following steps: step 1, construction before the outer mold of segment n is demoulded; step 2, segment n+1 Roof system conversion construction; step 3, segment n+1 mold closing construction. The invention adopts the steel bar trolley to bind the steel bars of the roof in advance, and through the system conversion, the work of key lines is reduced, the construction time of key lines is effectively shortened, the construction of the entire section of the immersed tube is ensured and the longitudinal main bars of adjacent sections are connected through the length, and the construction is improved. quality, reducing the risk of water seepage in the immersed tube.

Description

technical field [0001] The invention relates to the construction field of immersed tube tunnels. More specifically, the present invention relates to a construction method and system for the conversion of immersed tube prefabricated roof reinforcement system. Background technique [0002] As a cross-sea and river-crossing structure, immersed tube tunnels can be constructed in relatively weak ground conditions, seismically active areas, inland and marine environments, urban areas with restricted operations, and environmentally sensitive areas. At present, immersed tube prefabrication is mainly divided into layered prefabrication and full-section prefabrication. The full-section prefabrication method has gradually become the preferred method for immersed tube prefabrication due to the advantages of fewer construction joints and low risk of water seepage. According to the immersed tube prefabrication process, the construction of roof reinforcement has a great influence on the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/063
CPCE02D29/063
Inventor 孙晓伟冯先导曾波存陈金元余登文王聪穆清君徐彬彬朱金波张海川刘陪阳彭浩
Owner CCCC SECOND HARBOR ENG
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