临近高压气井对隧道施工安全的影响分析

Analysis of the Influence of Adjacent High Pressure Gas Wells on the Safety of Tunnel Construction

隧道建设中穿越含煤与瓦斯地层容易出现瓦斯涌出、围岩变形甚至崩塌等风险,而高压气井对附近岩体存在较大附加应力,给隧道施工带来更大安全隐患。结合黄瓜山隧道及其临近高压气井为研究对象,在对地质资料和现场资料进行整理的基础上,分析了高压气井对隧道施工产生的安全影响风险并提出了对策与建议,对穿越煤系地层隧道安全施工具有一定参考意义。

In the process of tunnel construction,the risks of gas emission,surrounding rock deformation and even collapse are easy to occur when passing through the coal and gas bearing strata,while the high pressure gas well has a large additional stress on the surrounding rock mass,which brings a greater security risk to the tunnel construction.Based on the geological data and field data,this paper analyzes the risk of safety impact of high pressure gas wells on tunnel construction and puts forward countermeasures and suggestions,which is of certain reference significance for the safety construction of tunnels crossing coal measures.