建筑安全风险因素分级排序的风险矩阵法

为减少风险分级排序时产生的风险结,在引入施工安全事故频率的基础上,采用单元格细化和Borda序值法改进原有的风险矩阵法。改进后的方法使得风险等级数量增加,风险结数量减少。将该方法应用于脚手架工程的风险因素的分级与排序,风险等级分为6级,且实现了12个因素的明确排序。

Risk Matrix Method for Classification and Sorting of Risk Factors in Construction Safety

In order to reduce risk ties in risk classification,the frequency of construction safety accidents was introduced and the cell refinement and Borda sequence value method were applied to improve the original risk matrix method.The improved method made the number of risk grades increased and the number of risk ties decreased.The new method was applied to the classification and ranking of the risk factors in a scaffolding engineering,and 12 risk factors were classified into 6 levels and a clearer ranking was achieved.