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A super-large-span tunnel arch lining steel bar binding bracket and method

A technology for steel bar binding and tunneling, which is applied in tunnel lining, tunnel, shaft lining and other directions, can solve the problems of difficult to meet the binding of steel three-dimensional mesh and large thickness of steel mesh, and achieve the effect of improving binding speed, fast feeding and positioning.

Active Publication Date: 2021-08-06
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the circumferential length of steel bars in super-large-section tunnel lining can be close to 100m, and multi-layer steel bars need to be bound radially, and the thickness of the steel bar is very large (more than 100cm).

Method used

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  • A super-large-span tunnel arch lining steel bar binding bracket and method
  • A super-large-span tunnel arch lining steel bar binding bracket and method
  • A super-large-span tunnel arch lining steel bar binding bracket and method

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Embodiment Construction

[0038] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] The invention discloses a super-large-span tunnel arch lining steel bar binding bracket, such as figure 1 , figure 2 As shown, including a platform 1, the top of the platform 1 is equipped with a binding platform 2 through a jacking device 10; the binding platform 2 is provided with several longitudinal reinforcement positioning fixtures 5, and each longitudinal reinforcement positioning fixture 5 is provided with Several gaps 54 for clamping longitudinal reinforcement, each longitudinal reinforcement positioning fixture 5 is horizontal, and extends from one side wall of the tunnel to the other side wall; several longitudinal reinforcement positioning fixtures 5 are along the tunnel The axial direction is distributed in parallel; the binding platform 2 is also provided with a first circumferential steel bar clamp 6 and a second circu...

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PUM

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Abstract

The invention discloses a super-span tunnel arch lining steel bar binding support and method, comprising a platform, a binding platform is installed on the top of the platform through a jacking device; a plurality of longitudinal steel bar positioning fixtures are arranged on the binding platform; the binding platform A first circumferential steel bar clamp and a second circumferential steel bar clamp are respectively arranged on the upper part; the front end of the binding platform is also provided with a steel bar feeding mechanism; The two-circumferential steel clamps can realize the positioning of longitudinal steel bars and circumferential steel bars, and realize the feeding of steel bars through the steel bar feeding mechanism, which can quickly complete the loading and positioning of steel bars, and the binding steel bars can be realized through the jacking device. The lifting and fixing of the three-dimensional net provides an effective means for the fixation of the steel three-dimensional net, thereby improving the binding speed of the steel bars in the tunnel arch.

Description

technical field [0001] The invention belongs to the technical field of tunnel and underground engineering construction, and in particular relates to a super-large-span tunnel arch lining steel bar binding bracket and method. Background technique [0002] With the development of the national economy and the continuous advancement of science and technology, super-long-span tunnels and underground projects are gradually emerging. Reinforced concrete lining is an extremely important support structure in tunnel and underground engineering, and steel bar binding is a very routine process in lining construction. The steel mesh in the lining structure is usually composed of inner and outer main reinforcements, and intermediate horizontal and vertical connecting reinforcements, which are criss-crossed to form a three-dimensional network structure. Steel bars usually need to be bound in sections and one by one. The quality of binding is the basis for determining the construction qual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/15E21D11/10E21D11/18
CPCE21D11/10E21D11/152E21D11/18
Inventor 刘永胜卓越林春刚尚伟王百泉张志强彭怀炀谢韬李荆侯占京
Owner CHINA RAILWAY TUNNEL GROUP CO LTD