天山公路沿线地质灾害危险性模糊综合评判——以K576+800~K690+000段为例

主要运用模糊综合评判方法,对天山公路沿线地质灾害危险性进行分区评价。以天山地区国道217线(K576+800~K690+000段)公路沿线地质灾害为研究对象,通过对野外现场调查资料与已有地质资料的分析,建立了适合高寒山区实际地质环境条件的公路沿线崩塌、滑坡、泥石流等灾害的评价指标体系。利用层次分析法确定该评价指标体系中评价因子的权值,运用两级模糊综合评判法对研究区的地质灾害分区进行定量评价。根据最大隶属度原则得出每一区段的危险性评价结果,按地质灾害危险性等级对研究区进行区划。此评价结果可供今后该段公路沿线地质灾害防治参考。

Fuzzy Integrate Risk Evaluation of the Geological Hazard along Tianshan Highroad——Taking the K576+800～K690+000 as a sample

This paper utilizes fuzzy integrate evaluation method to assess geological disaster along Tianshan highroad. It takes the geological hazards along the Tianshan highroad as the study object. The author founds the appraising system of geological hazards such as slide and debris flow for cold mountain region area through analyzing the material which was achieved from field investigation. The author ascertains the weights of evaluation factor with the analytic hierarchy process method and evaluates quantificationally the risk with fuzzy integrate evaluation, then deduces the estimate result about fatalness with principle of maximal feudatory to every section. The evaluate results can supply reference in the work of geological hazards prevention along this highroad.