基于云模型的钻爆法隧洞施工风险评价

Risk Assessment of Drilling-Blasting Tunnel Construction Based on Cloud Model

针对钻爆法隧洞施工过程中风险评价不确定性的问题,基于云模型的层次分析法和熵权法,建立云模型,对隧洞钻爆法施工风险进行评价。以河南某灌区钻爆法施工隧洞为例,采用专家调查法,将该灌区特有的地质条件和施工方法纳入指标范围,形成环境、技术、设备、管理、施工人员等5个方面的指标体系,采用博弈论,计算基于云模型的层次分析法和熵权法的权重云,并结合专家评分得到综合评价云。结果表明,该钻爆法隧洞施工风险综合评价结果为优,风险管控效果较好。

Aiming at the uncertainty of risk evaluation in the process of tunnel construction by drilling-blasting method,a cloud model is established based on the analytic hierarchy process and entropy weight method of cloud model to evaluate the construction risk of tunnel drilling and blasting.Taking a tunnel constructed by drilling-blasting method in an irrigation area in Henan Province as an example,the expert investigation method is adopted,and the unique geological conditions and construction methods of the irrigation area are included in the index range,forming an index system in five aspects,including environment,technology,equipment,management and construction personnel.By using game theory,the weight clouds of analytic hierarchy process and entropy weight method based on cloud model are calculated,and a comprehensive evaluation cloud is obtained by combining expert scores.The results show that the comprehensive evaluation result of tunnel construction risk by this drilling-blasting method is excellent,and the risk control effect is good.