隧道穿越煤系地层的施工风险

Study on Construction Risk of Tunnel Crossing Coal Strata

结合贵州省某高速隧道穿煤段的工程条件,对隧道穿越煤系地层的施工风险进行分析,确定隧道施工中潜在的风险事件.在此基础上,构建该隧道的风险评估指标体系,并采用层次分析法、专家调查法和模糊综合评价法对该隧道的施工风险进行计算分析,并提出相应的风险控制措施.

Based on the engineering conditions of a coal-passing section of a high-speed tunnel in Guizhou Province, the construction risk of the tunnel crossing the coal measures stratum is analyzed, and the potential risk events existing in the tunnel construction are determined. On this basis, the risk assessment index system of the tunnel is constructed, and then the construction risk of the tunnel is calculated and analyzed by using analytic hierarchy process, expert investigation method and fuzzy comprehensive evaluation, and corresponding risk control measures are proposed.