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Tunnel secondary-lining concrete and rock cutting mechanism, device and method

A cutting mechanism and cutting equipment technology, applied in stone processing equipment, stone processing tools, work accessories, etc., can solve the problems of high cost, low demolition efficiency, insufficient thickness, etc., and achieve high construction efficiency, reduce explosive costs, and construction costs. low effect

Active Publication Date: 2019-07-30
中铁十一局集团第五工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to various reasons in the construction process of the secondary lining concrete of high-speed railway tunnels, defects such as emptying and insufficient thickness of the secondary lining concrete of the tunnel have seriously affected the operation safety of high-speed railways.
In order to ensure the safe operation of the tunnel, unqualified tunnel secondary lining concrete must be dismantled and rebuilt. The current tunnel secondary lining concrete renovation project uses conventional breaking hammers or blasting for demolition operations. The demolition efficiency is low and the cost is high. The irregularity of the second lining concrete increases the difficulty of backfilling

Method used

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  • Tunnel secondary-lining concrete and rock cutting mechanism, device and method
  • Tunnel secondary-lining concrete and rock cutting mechanism, device and method
  • Tunnel secondary-lining concrete and rock cutting mechanism, device and method

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Embodiment Construction

[0021] Below by embodiment and in conjunction with accompanying drawing, the present invention will be further described:

[0022] figure 1 Shown is a tunnel secondary lining concrete and rock cutting mechanism, which is mainly composed of a boom 1, a telescopic arm 2, a cutting arm 3, a cutting circular saw 4, a universal joint 5, a slewing bearing 6, and a depth control wheel 7. The front end of the boom 1 and the rear end of the telescopic boom 2 are hinged together through a universal joint 5, so that the telescopic boom 2 can swing up and down relative to the boom 1 and swing back and forth. The front end of the telescopic arm 2 is connected with the rear end of the cutting arm 3 through a slewing bearing 6, so that the cutting arm 3 can perform a rotary motion relative to the telescopic arm 2. The front end of the cutting arm 3 is equipped with a cutting circular saw 4, and the cutting circular saw 4 is equipped with a depth control wheel 7 for controlling the cutting d...

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Abstract

The invention discloses a tunnel secondary-lining concrete and rock cutting mechanism, device and method. The mechanism comprises a large arm, a telescopic arm and a cutting arm, wherein the front endof the large arm and the rear end of the telescopic arm are hinged together through a universal joint, so that the telescopic arm is capable of swinging vertically and horizontally relative to the large arm; the front end of the telescopic arm and the rear end of the cutting arm are connected through a rotary support; a cutting circular saw is arranged on the front end of the cutting arm; and thecutting circular saw is provided with a depth control wheel for controlling the cutting depth. The mechanism is installed on a modified excavator, a crane, a rock drilling trolley or a drilling machine through the large arm. According to the mechanism, the device and the method, 360 degrees of cutting in any spatial orientation is achieved, the demolition efficiency of the tunnel second-layer concrete or rock is effectively improved, and the construction cost is saved.

Description

technical field [0001] The invention relates to special equipment for cutting concrete or rock, in particular to a tunnel secondary lining concrete and rock cutting mechanism, including cutting equipment for the tunnel secondary lining concrete and rock cutting mechanism, and a method for cutting the tunnel secondary lining concrete by the cutting equipment. Background technique [0002] Due to various reasons in the construction process of the secondary lining concrete of high-speed railway tunnels, defects such as emptying and insufficient thickness of the secondary lining concrete of the tunnel have seriously affected the operation safety of high-speed railways. In order to ensure the safe operation of the tunnel, unqualified tunnel secondary lining concrete must be dismantled and rebuilt. The current tunnel secondary lining concrete renovation project uses conventional breaking hammers or blasting for demolition operations. The demolition efficiency is low and the cost is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28D1/04B28D7/00
CPCB28D1/04B28D1/045B28D7/00
Inventor 张开顺魏强郑心铭刘为民谭立平刘志国吴凯
Owner 中铁十一局集团第五工程有限公司
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