Construction method for tunnels with karst and gas simultaneously

A technology for tunnel construction and gas, applied in tunnels, gas discharge, tunnel lining, etc., can solve problems such as bad social impact, loss of life and property, and achieve the effect of improving the efficiency of ballast transportation, avoiding accidents, and being easy to popularize.

Active Publication Date: 2012-07-04
CHINA RAILWAY NO 2 ENG GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Generally speaking, the probability of gas disaster accidents in tunnels is low, but once a gas explosion or gas outburst accident

Method used

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  • Construction method for tunnels with karst and gas simultaneously
  • Construction method for tunnels with karst and gas simultaneously
  • Construction method for tunnels with karst and gas simultaneously

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Embodiment Construction

[0035] The above content of the invention of the present invention will be further described in detail below in conjunction with specific embodiments.

[0036] However, it should not be construed that the scope of the above-mentioned subject matter of the present invention is limited to the following examples. Without departing from the above-mentioned technical idea of ​​the present invention, various replacements and changes made according to common technical knowledge and customary means in this field shall be included in the scope of the present invention.

[0037] How to ensure the safety of gas tunnel construction by strengthening ventilation, outburst prevention, explosion prevention and gas detection, setting up fire-fighting facilities, and controlling excavation methods and blasting operations are the most important aspects of construction safety control.

[0038] Based on Xiaofanping Tunnel, the present invention will learn from domestic and foreign advanced technol...

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Abstract

The invention discloses a construction method for tunnels with karst and gas simultaneously. The construction method comprises following construction process: 1) advanced geological detection; 2) excavation construction; 3) tunnel muck hauling; 4) primary support; 5) lining construction; 6) water prevention and drainage construction; 7) construction ventilation; 8) construction power supply; and 9) treatment of collapse of coal measure strata. The construction method not only guarantees construction safety, but also meets the requirement on construction quality of the tunnels, and is mainly applied to construction of the tunnels with karst and gas simultaneously.

Description

technical field [0001] The invention belongs to the technical field of construction of karst and gas symbiosis tunnels, in particular to a construction method of karst and gas symbiosis tunnels. Background technique [0002] With the vigorous development of high-speed railway construction in my country, the number of tunnels is increasing. Due to the limitation of the curve radius of high-speed railway lines, tunnels will inevitably pass through areas with complex environments and geology, such as: broken rock mass, fault zones, karst, goafs areas, harmful gases, radioactive formations, rockbursts, dangerous rockfalls, high ground temperatures, etc. Tunnel construction in such a complex environment and complex stratum is facing great risks, the construction is difficult and the construction requirements are very high. How to overcome the tunnel construction difficulties in complex environments and complex strata, avoid construction risks, and ensure safe and high-quality com...

Claims

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Application Information

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IPC IPC(8): E21D9/00E21D11/00E21D11/10E21F7/00E21F1/00
Inventor 刘海涛王才业韦建华魏力立杨梅
Owner CHINA RAILWAY NO 2 ENG GRP CO LTD
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