Once a foundation pit fails,it can trigger a series of cascading failures with severe consequences.This study applies fault tree analysis to determine the structural importance of basic events and constructs a judgment ma-trix within the Analytic Hierarchy Process(AHP)to determine the combined weights.These weights are then inte-grated with node degrees in the disaster chain to obtain the risk values for each disaster chain associated with contin-uous failure of the foundation pit.The results indicate that the main risk chains for continuous failure of the founda-tion pit are the support structure damage from infiltrating water,the support structure damage from the support struc-ture deformation,and water and sand gushing from infiltrating water.Attention should be given to these aspects dur-ing the construction process.
关键词
基坑连续破坏/事故树/层次分析法/灾害链/风险评价
Key words
continuous destruction of foundation pit/fault tree/analytic hierarchy process/disaster chain/risk as-sessment
维普
万方数据