贵州旧州高瓦斯隧道施工技术及风险评估

The Construction Technology and Risk Assessment to High Gas Tunnel in Jiuzhou Guizhou Province

位于我国西南地区的贵州、四川和云南是瓦斯事故发生较多的地区,在云贵川地区的隧道施工中,需要特别注意对高瓦斯隧道施工风险的评估及预防。就贵州旧州高瓦斯隧道从施工装备、施工顺序、施工工艺、质量控制到不良地质现象处理等施工技术进行探讨,并基于层次分析法及模糊综合法建立了高瓦斯隧道的风险评估体系,对该工程风险进行评估,判定该隧道为高瓦斯隧道。

Guizhou,Sichuan and Yunnan,located in Southwest China,are the areas where gas accidents occur frequently.In the tunnel construction of Yunnan,Guizhou and Sichuan,special attention should be paid to the risk assessment and prevention during high gas tunnel construction.In this paper,the construction technology of high gas tunnel in Jiuzhou Guizhou is discussed,and based on the analytic hierarchy process and fuzzy comprehensive method,the risk assessment system of high gas tunnel is established,which is successfully applied to the construction risk assessment of such projects.