摘要
文章根据成都至自贡至泸州高速公路马鞍山隧道所处的煤层瓦斯地质状况,利用超前钻探法对隧道围岩的掌子面和钻孔瓦斯浓度进行了测试,测试结果能有效判定前方岩层的瓦斯赋存和涌出情况。
According to the geological conditions of coal seam gas where Ma＇anshan Tunnel of Chengdu-Zigong-Luzhou Expressway is situated,the article tested the gas concentration at tunnel face and boreholes of rocks surrounding the tunnel through the advanced drilling method,and the test results could effectively determine the gas occurrence and emission situations at front rock layers.
出处
《西部交通科技》
2012年第3期57-60,共4页
Western China Communications Science & Technology
关键词
超前钻探法
煤层瓦斯
隧道施工
应用
Advanced drilling method
Coal seam gas
Tunnel construction
Applications
