Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Gas drainage system for tunnel and tunnel structure

A technology of gas drainage and tunnel structure, which is applied in the direction of gas discharge, drainage, safety devices, etc., to reduce the risk of escape, avoid accumulation, avoid safety hazards and even accidents

Pending Publication Date: 2017-07-25
ROAD & BRIDGE SOUTH CHINA EINGINEERING CO LTD +1
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a gas drainage system for the separation of water and gas in the gas tunnel to remove the gas in the gas work area, so as to solve the problem of gas prevention and control after tunnel excavation and operation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gas drainage system for tunnel and tunnel structure
  • Gas drainage system for tunnel and tunnel structure
  • Gas drainage system for tunnel and tunnel structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The present invention will be further described below with reference to the accompanying drawings and exemplary embodiments, wherein the same reference numerals in the accompanying drawings all refer to the same components. Also, detailed descriptions of known arts will be omitted if they are unnecessary to illustrate the features of the present invention.

[0031] Such as figure 1 As shown, one of the embodiments of the tunnel structure provided by the present invention includes: gas drainage system, drainage pipe 4, annular blind ditch 5, primary support 6, secondary lining 7, inverted arch 9 and tunnel cavity 10. The gas drainage system includes an air extraction device 1, a gas drainage channel 2 and a sealing device 3; the primary support 6 is a steel frame support located on the outer layer of the tunnel; the secondary lining 7 is airtight permanent concrete pouring, located inside the primary support 6; the inverted arch 9 is arranged opposite to the secondary l...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a gas drainage system for a tunnel. The gas drainage system comprises a gas drainage hole passage achieving communicating of the front position of a tunnel advancing end point and the outside world, an gas evacuating device arranged outside the tunnel and connected with the gas drainage hole passage, and a sealing device, wherein the sealing device achieves sealing the gas drainage hole passage and the gas evacuating device in the connection position. By communicating of the front position of the tunnel advancing end point and the outside world, gas is extracted out and discharged before the tunnel is advanced to a gas gathering area, and security accidents due to gas gathering can be effectively prevented.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of tunnel construction, in particular to a gas drainage system and a tunnel structure of a gas tunnel. [0003] 【Background technique】 [0004] Gas refers to the general term for various harmful gases overflowing from coal (rock) layers. Its main components are methane, carbon dioxide, and sometimes a small amount of sulfur dioxide, hydrogen sulfide, carbon monoxide and other gases. Gas is a colorless, odorless and odorless gas, but sometimes it will emit a special smell similar to apple aroma due to the accompanying hydrocarbons and trace amounts of hydrogen sulfide. Its relative density is 0.554. Gas is slightly soluble in water and has a strong Diffusion and permeability, gas is flammable and explosive. According to the "Technical Specifications for Railway Gas Tunnels", gas tunnels are divided into three types: low gas tunnels, high gas tunnels and gas outburst tunnels. The gas tunnel work area is divide...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E21F7/00E21F16/02
CPCE21F7/00E21F16/02Y02E10/20
Inventor 高世强肖向荣杨立新檀兴华刘敦文刘怀刚刘伟葛纪平张铮褚夫蛟谭力海赵升辉
Owner ROAD & BRIDGE SOUTH CHINA EINGINEERING CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com