基于突变级数法的地铁车站基坑施工风险研究  

Research about Construction Risk of Foundation Pit of Subway Station Based on Catastrophe Progression Method

作　　者：潘海泽[1] 贺建[1] 陈梦捷[1] 缪玮[1] 

机构地区：[1]西南石油大学土木工程与建筑学院,成都610500

出　　处：《地下空间与工程学报》2017年第3期840-845,共6页Chinese Journal of Underground Space and Engineering

基　　金：国家安监局项目(2014-3264);四川省教育厅项目(13zb201)

摘　　要：地铁车站基坑条件复杂,影响基坑施工因素多,导致地铁车站基坑施工中面临众多风险,针对地铁车站施工的风险问题,通过对地铁车站基坑施工风险分析,建立了地铁车站基坑工程施工风险评价指标体系(6个一级指标、17个二级指标)。然后将突变级数法应用到地铁车站基坑施工风险分析中,相对于其他风险评价方法,突变级数法不需要计算权重,且是基于状态变量的动态评价方法,弥补了静态评价方法的不足,减少了主观性。并以天津凌宾路地铁车站为例,分析了基坑事故原因相互作用对事故的影响,对车站基坑施工风险概率进行了计算,同时对结果进行了分析处理,采取了相应的防范措施,在基坑施工风险预防中得到了很好的应用。There are many risks in the construction of subway station foundation pit due to the complicated conditions of subway station foundation pit and numerous factors influencing foundation pit construction. Aimed at the construction risk of subway station v based on the risk analysis of subway station foundation pit construction~ the construction risk evaluation index system of the subway station foundation pit was established, including six first grade indexes and seventeen second grade indexes. The catastrophe progression method was applied to the risk analysis of subway station foundation pit construction. Compared with other risk assessment methods, the catastrophe progression method does not need to calculate the weight, and it is a dynamic evaluation method based on state variables, which makes up the deficiency of static evaluation method and reduces the subjectivity. Taking the subway station in Tianjin Lingbin road as example, the influence from interactional reasons for foundation pit accidents on accidents was analyzed, and the risk probability of subway station foundation pit construction was calculated, at the same time, the results was analyzed to propose corresponding preventive measures, which got very good application in the foundation pit construction risk prevention.

关 键 词：地铁车站 基坑施工 风险 突变级数 

分 类 号：U231[交通运输工程—道路与铁道工程]