新寨隧道煤与瓦斯突出危险性评价及揭煤施工设计

Evaluation of Fatalness of Coal and Gas Outburst and Detailed Design of Cutting through Coal Seam in XinZhai Tunnel

根据对新寨隧道地质勘测得到的煤系地层煤与瓦斯的各项物理力学参数,对煤与瓦斯的突出危险性进行了评价,并借鉴国内外揭煤施工的各种方法,设计了综合揭煤措施,对高瓦斯隧道煤系地层进行安全施工。可为类似条件下揭煤提供参考。

According to the mechanical parameters of geological reconnaissance of coal bed and gas in Xinzhai tunnel,the fatalness of coal and gas outburst is evluated.Using all coal digging methods as a reference,synthetical cutting through coal seam measure is designed.The coal bed of the tunnel with high gas is constructed safely.The results can be used for similar conditions.