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A small-section tunnel vertical steel arch device

A technology of steel arch and small section, applied in tunnels, tunnel linings, shaft equipment and other directions, can solve the problems of high labor intensity, high risk, high labor intensity, etc., and achieves improved work efficiency, wide practicability, and low cost. Effect

Active Publication Date: 2021-04-23
核工业井巷建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing steel arch installation platform is only for operators to climb to the installation position on the inner wall of the tunnel, and then each steel arch segment is manually lifted to the installation position and assembled for installation. This installation method is labor-intensive and slow , and the arch installation operation face is just excavation section, the surrounding rock is unstable, and it is easy to cause problems such as falling rocks and injuring people, which is very dangerous
The patent with the application number CN201410181277.9 proposes "a tunnel initial support steel arch installation platform and steel arch installation method", which uses the tunnel initial support steel arch installation platform to lift the steel arch, and solves the problem of The existing disadvantages of high labor intensity and slow installation speed caused by artificially lifting the steel arch frame are eliminated. At the same time, the steel arch frame can be assembled on the ground at the excavation site, which reduces the labor intensity of the operators and improves the construction efficiency. Safety, but the assembly of the installation platform is slow and inconvenient to move. For tunnels with a section below 3.0m×3.0m, the vertical steel arch frame mainly relies on manpower, which is labor-intensive and low-efficiency

Method used

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  • A small-section tunnel vertical steel arch device
  • A small-section tunnel vertical steel arch device
  • A small-section tunnel vertical steel arch device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A vertical steel arch device for a small-section tunnel, comprising two supporting seats 1 respectively erected on the edge of a tool cart. The inner wall of the side side is fixed with a pulley block b14, and the two pulley blocks b14 are horizontally erected with a moving guide rail 2 with a moving base 3, and the moving guide rail 2 can be fixed on the wheel changing block b14. The moving base 3 is a C-shaped steel channel, and the two opposite Two rows of pulley blocks a13 are arranged on the inner side wall of the mobile base 3, and the mobile base 3 is sleeved on the moving guide rail 2 and erected longitudinally on the two rows of pulley blocks a13. Then the rotating shaft 8, the rotating shaft 8 can rotate at a certain angle relative to the hydraulic telescopic rod 4, the side of the rotating shaft 8 is provided with a rotating handle 9, the top is fixedly connected to the bottom plate 51 of the jacking 5, and the bottom plate 51 is provided with two parallel opp...

Embodiment 2

[0036]A vertical steel arch device for small-section tunnels, including two support seats respectively erected on the edge of the tool cart, the support seats adopt U-shaped steel channels, the notches of the two support seats are arranged opposite to each other, and the sides of the U-shaped steel channels The inner wall is fixed with a pulley set b, and the two pulley sets b are horizontally erected with a moving guide rail with a moving base. The moving base is a C-shaped steel channel, and two rows of pulley sets a are arranged on the two opposite inner walls. The moving base is sleeved on the moving guide rail. It is vertically erected on two rows of pulley blocks a, and the upper part of the mobile base is fixedly connected with a hydraulic telescopic rod. The upper part of the hydraulic telescopic rod is connected with a rotating shaft. The rotating shaft can rotate at a certain angle relative to the telescopic rod. The side of the rotating shaft is provided with a rotati...

Embodiment 3

[0038] A vertical steel arch device for small-section tunnels, including two support seats respectively erected on the edge of the tool cart, the support seats adopt U-shaped steel channels, the notches of the two support seats are arranged opposite to each other, and the sides of the U-shaped steel channels The inner wall is fixed with a pulley set b, and the two pulley sets b are horizontally erected with a moving guide rail with a moving base. The moving base is a C-shaped steel channel, and two rows of pulley sets a are arranged on the two opposite inner walls. The moving base is sleeved on the moving guide rail. It is vertically erected on two rows of pulley blocks a, and the upper part of the mobile base is fixedly connected with a hydraulic telescopic rod. The upper part of the hydraulic telescopic rod is connected with a rotating shaft. The rotating shaft can rotate at a certain angle relative to the telescopic rod. The side of the rotating shaft is provided with a rotat...

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Abstract

The invention relates to the field of tunnel engineering devices, in particular to a small-section tunnel vertical steel arch device, which includes two symmetrical support seats and a sliding guide rail erected between the two support seats. The sliding guide rail is slidably connected with A mobile base, the mobile base is connected to the jacking bracket through a telescopic structure, and the support base can be connected to the body of the tool car for the tunnel. The small-section tunnel vertical steel arch device proposed by the invention has the advantages of simple construction, low cost and high maneuverability.

Description

technical field [0001] The invention relates to the field of tunnel engineering devices, in particular to a vertical steel arch device for small-section tunnels. Background technique [0002] The initial support forms of tunnel engineering include sprayed anchor net support and steel frame anchored sprayed support. It is processed in sections outside the tunnel. Before installation, it is transported to the excavation site of the tunnel face. It is manually assembled into two sections on the ground, and then assembled vertically. Connect the reinforcement, install the reinforcement mesh, and finally, spray the primary support concrete. The existing steel arch installation platform is only for operators to climb to the installation position on the inner wall of the tunnel, and then each steel arch segment is manually lifted to the installation position and assembled for installation. This installation method is labor-intensive and slow , and the arch installation operation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/18E21D11/30
CPCE21D11/18E21D11/186E21D11/30
Inventor 曾新平付志鹏欧阳德良崔栋许贤杰柳丹峰
Owner 核工业井巷建设集团有限公司