摘要
基于隧道施工中常见安全事故原因的调查和分析,对隧道施工阶段常见风险因素和危险环境进行辨识,并采用事故树分析方法,建立隧道塌方事故树模型,对隧道施工塌方顶事件进行了定性和定量分析。最终得出隧道塌方26个基本事件的结构重要度序列以及隧道塌方事件概率重要度和临界重要度分析方法;通过工程实例分析发现,采取措施前后塌方的发生概率从0.006 225降至0.000 941。
Based on the investigation and analysis of the causes of common safety accidents in tunnel construction, the risk factors and dangerous environment around the tunnel were identified. The fault tree analysis method was used to establish the model for tunnel collapse, and the events of tunnel collapse were qualitatively and quantitatively analyzed. The structural importance sequence of the 26 basic events, the probability and the critical importance analysis method of tunnel collapse were acquired. In terms of the analysis on practical projects, the occurrence probability of the tunnel collapse is reduced from 0. 006 225 to 0. 000 941 after taking measures.
出处
《筑路机械与施工机械化》
北大核心
2017年第7期106-110,共5页
Road Machinery & Construction Mechanization
基金
中铁西北科学研究院创新项目(J2014003)
关键词
隧道工程
塌方分析
事故树分析
概率模型
tunnel engineering
collapse analysis
fault tree analysis
probability model
