人工挖孔桩发生坍塌事故的可能性评价方法

The probability assessment method of artificial dig hole pile occurred collapse accident

采用层次分析法对阳泉市南娄大桥桩基施工发生事故的可能性进行评估,构建了人工挖孔桩坍塌影响因素的有序递阶层次结构,并划分出评价级别以及相应评价指标的量值,再进行隶属度模糊处理,建立各因素模糊评价矩阵,通过最大隶属度原则进行综合评判事故发生等级,经计算该人工挖孔桩发生坍塌事故可能性分级为Ⅳ级,为很可能发生。

Using the hierarchy analysis method evaluated the possibility of Yangquan Nanlou bridge pile foundation accident, construction of the orderly hierarchical structure of artificial dig hole pile collapse effect factors, and divided the evaluation level and corresponding evaluation index value, then made membership degree fuzzy process, establishment of factor fuzzy evaluation matrix, through the maximum membership degree made comprehensive evaluation of the accident grade, artificial dig hole pile collapse possibility of grade five, is likely to happen.