Soil pressure shield machine for stratum rich in harmful gas and tunnel construction method

A harmful gas, shield machine technology, applied in the field of shield machines, can solve safety and other problems

Active Publication Date: 2021-06-29
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an earth pressure shield machine and a tunnel construction method used in formations rich in harmful gases to solve safety problems caused by toxic and harmful gases

Method used

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  • Soil pressure shield machine for stratum rich in harmful gas and tunnel construction method
  • Soil pressure shield machine for stratum rich in harmful gas and tunnel construction method
  • Soil pressure shield machine for stratum rich in harmful gas and tunnel construction method

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Embodiment Construction

[0022] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0023] like Figure 1 to Figure 4 As shown, the embodiment of the present invention provides an earth pressure shield machine for the formation rich in harmful gas, and the earth pressure shield machine for the formation rich in harmful gas includes a cutter head 1, a shield body 2, a main body Drive 3, assembler 4, screw conveyor 5 and rear supporting components, wherein the rear supporting components include rear supporting trailer 6, belt conveyor pressure isolation bin 8, shield machine belt conveyor 9 and suction components. The rear supporting trailer 6 is used to place the electrical, hydraulic and fluid equipment required for the operation of various shield mac...

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PUM

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Abstract

The invention provides a soil pressure shield machine for a stratum rich in harmful gas and a tunnel construction method. The soil pressure shield machine for the stratum rich in harmful gas comprises a cutter head, a shield body, a main drive, an assembling machine, a spiral conveyor and a rear matching assembly; the rear matching assembly comprises a rear matching trailer, a belt conveyor pressure isolation bin, a shield machine belt conveyor and a suction assembly; the belt conveyor pressure isolation bin is of a cylindrical structure with openings in the two ends, the front end of the belt conveyor pressure isolation bin communicates with a slag outlet of the spiral conveyor in a sealed mode, and the rear end of the belt conveyor pressure isolation bin extends to a tunnel belt conveyor area at the tail of the rear matching trailer; the shield machine belt conveyor is arranged in an inner cavity of the belt conveyor pressure isolation bin and can convey slag discharged from the slag outlet of the spiral conveyor to the tunnel belt conveyor area; and the suction assembly communicates with the inner cavity of the belt conveyor pressure isolation bin and can suck gas in the inner cavity. By means of the closed design of a slag discharging area, tunnel construction in the stratum rich in harmful gas is handled.

Description

technical field [0001] The invention relates to the field of shield machines, in particular to an earth pressure shield machine and a tunnel construction method for strata rich in harmful gas. Background technique [0002] In tunnel construction, earth pressure balance shield machine has the advantages of low equipment cost, small working area and high construction efficiency. construction. [0003] In tunnel construction, toxic and harmful gases in the tunnel stratum have always been the main source of danger in construction, and major safety accidents are likely to occur if construction is improper. Due to the complexity of geological features, common harmful gases in tunnels mainly include methane, carbon monoxide, carbon dioxide, hydrogen sulfide, nitrogen, etc., but also encounter other irritating or radioactive harmful gases such as ammonia and radon. Due to the large number of electrical equipment in the main body of the shield machine and the supporting equipment, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087E21D9/093E21F1/00E21F7/00E21F17/18
CPCE21D9/087E21D9/093E21F1/00E21F7/00E21F17/18
Inventor 尹跃峰刘腾龙陈昆鹏庞培彦岳银鹏刘豪
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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