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Non-ventilation type tunnel boring construction method

A construction method and non-ventilated technology, which is applied in the ventilation of mines/tunnels, tunnels, earthwork drilling and mining, etc., can solve the problems of shaft layout difficulties, construction difficulties and increased project investment, and achieve increased space, reduced difficulty and cost Effect

Inactive Publication Date: 2016-07-20
YELLOW RIVER ENG CONSULTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the ventilation in the mechanized construction of long tunnels mostly adopts large air volume, large diameter, and long-distance pipeline ventilation technology. For deep and large tunnel sections, shaft layout is difficult, construction difficulty and project investment will further increase, especially in the construction of ultra-long tunnels in plateau anoxic areas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The non-ventilated type tunnel excavation construction method of the present invention, comprises the following steps:

[0012] The first step is to use remote operation of the unmanned tunnel boring machine. At the same time, using mature technology such as the passenger cabin of a civil aviation airliner, the operating room of the tunnel boring machine is set in the form of a closed oxygen chamber for the operation The staff in the room provide oxygen; the staff use fire mask type respirators and small oxygen cylinders to self-supply oxygen when passing, guarding, overhauling and working in the tunnel face;

[0013] In the second step, the transport vehicles in the tunnel adopt electric locomotives;

[0014] Step 3: The tunnel boring machine sprays water on the working face to cool down and remove dust during tunneling construction. At the same time, install a cooling system behind the cutter head of the tunnel boring machine to achieve the cooling effect and ensure t...

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PUM

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Abstract

The invention discloses a non-ventilation type tunnel boring construction method. 1, a driverless tunnel boring machine (TBM) is operated remotely, meanwhile, by adopting proven technology such as passenger cabin technology of a passenger aircraft, an operation room of the TBM is arranged into a closed type oxygen chamber form and used for providing oxygen for a worker in the operation room, and with usage of a fire mask type respirator and a small oxygen cylinder, self oxygen supply is achieved for the worker during passing, duty, overhauling and working on a tunnel face in a tunnel. 2, an electric motorcycle is adopted as a transport vehicle in the tunnel. 3, the TBM sprays water toward a working face for cooling and dedusting during boring construction. 4, when harmful poisonous gas is generated during construction, inert gas is transported to a poisonous gas releasing point through the electric motorcycle for diluting the poisonous gas, or a pouring system is arranged for pouring gastight concrete so as to seal the poisonous gas releasing point. The non-ventilation type tunnel boring construction method has the advantages that the difficulty and construction cost of tunnel construction are reduced.

Description

technical field [0001] The invention relates to a tunnel excavation construction method, in particular to a non-ventilated tunnel excavation construction method. Background technique [0002] Tunnel boring machine (TBM: Tunnel Boring Machine) is widely used in the mechanized construction of long tunnels. When tunnel boring machines are used for long-distance tunnel construction, the first problem to be solved is the ventilation problem in the tunnel. At present, the ventilation in the mechanized construction of long tunnels mostly adopts large air volume, large diameter, and long-distance pipeline ventilation technology. For deep and large tunnel sections, shaft layout is difficult, construction difficulty and project investment will further increase, especially in the construction of ultra-long tunnels in plateau anoxic regions. Contents of the invention [0003] The object of the present invention is to provide a non-ventilated tunnel excavation construction method. ...

Claims

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Application Information

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IPC IPC(8): E21D9/10E21F1/00E21F5/04
CPCE21D9/10E21F1/006E21F5/04
Inventor 张金良刘宗仁杨晓箐杨应军
Owner YELLOW RIVER ENG CONSULTING