芜湖城南地区矿山隧道浅层气灾害勘察结构分析及治理措施

Exploration structure analysis and control measures of mine geological hazards in south area of Wuhu city

浅层气在矿山隧道施工中具有较大的危险性,工程中主要采用提前有控放气,并在施工及运营过程中加强通风及监测的方法来控制风险。本文依托芜湖城南过江矿山隧道工程,综合运用理论分析、现场测试、气体检测等方法,通过研究矿山区域中隧道勘察结构变化,对探测仪设备及测试工艺进行分析,查明了浅层气的空间分布规律、气体成分、气压及气量特征,分析了矿山隧道勘察结构构建的影响,提出了隧道工程灾害针对性的防治措施建议,为设计、施工提供地学依据。

Shallow gas is very dangerous in the construction of mine tunnel.The main methods to control the risk are controlled air release in advance,ventilation and monitoring in the process of construction and operation.In this paper,based on wuhu city river-crossing tunnel project in mines,the integrated use of theoretical analysis and field test,gas detection methods,by studying the structural change in the tunnel exploration in the mining area,analyzes detector equipment and test process,find out the spatial distribution of shallow gas,gas composition,pressure and gas characteristics,analysis the influence of mining tunnel exploration structure building,Suggestions on prevention and control measures for tunnel engineering disasters are put forward to provide geoscientific basis for design and construction.