基于集对模型的地下工程塌方风险分析方法

SPA Model-based Analysis of Landslide Risk in Underground Engineering

为度量和监控地下工程塌方风险态势,提出一种基于集对模型的地下工程塌方风险分析方法。通过归纳地下工程塌方灾害因素,建立地下工程塌方风险的层次化结构,应用变异系数法确定风险指标的权重值;以集对分析(SPA)的同异反联系度和距离测度为基础,构建地下工程塌方风险态势监控机制及分析模型。给出地下工程塌方风险态势度量工作步骤,确定地下工程塌方灾害风险集对势、贴近度和次序关系。最后,通过对塌方风险分析样本的集对计算,为有效防范塌方灾害由潜伏性向灾变性转化提供防范重点。

To Monitor and measure the landslide risk situation of underground engineering,a SPA model-based method for analysing landslide risk in underground engineering was put forward.Through inducing the landslide factors in underground engineering,the landslide risk hierarch mechanism was erected,whose factors＇ weight was determined by Variation Coefficient;Based on the Identity,Contrary,Difference connection degree of Set Pair Analysis and the distance measuring theory,risk control mechanism and analysis model was erected about landslide situation of underground engineering,which gave the steps about the underground engineering landslide measurements;And model determined the SPA force,subjected degree and sequence relation about the landslide risk situation of underground engineering.Finally,following the SPA analysis about the landslide risk case,the important units were gained for more monitoring and risk control,to effectively prevent the transformation from the latent status to the catastrophic status.