新建库车至俄霍布拉克煤矿专用铁路却勒塔格2号隧道瓦斯问题的分析与对策

摘要

却勒塔格2号隧道瓦斯突出地段为非煤系地层,本身并不产生瓦斯气体,而是通过断层及两侧影响带存储瓦斯气体.文章通过隧道地质勘察并利用仪器对瓦斯气体实时监测及取样分析,查明了瓦斯成分和气体来源.并针对非煤系地层瓦斯突出问题,提出了加强瓦斯监测、施工通风、超前地质预报等工程措施.%The gas burst section of the Queletage No.2 Tunnel is located in non-coal measure strata which itself does not generate gas,but reserve gas is emitted through the faults and influence belts on both sides.The composition and source of the gas were ascertained by geological surveying,real-time monitoring,and sampling analysis.As for the gas burst in the non-coal measure strata,such countermeasures as strengthened gas monitoring,intensive construction ventilation,and advance geological forecasts are presented.