基于信息量模型-层次分析法的县域地质灾害风险评价——以新疆乌恰县为例  

Geological Hazard Risk Assessment Based on Information Method Analytic Hierarchy Process:An Example From Wuqia County,Xinjiang Autonomous Region

作　　者：田逸楠 乃尉华 师德扬 张程凯 李斌[1] Tian Yinan;NaiWeihua;Shi Deyang;Li Bin;Zhang Chengkai(NO.2 Hydrogeological and Engineering Geological Team of Xinjiang Bureau of Geology and Mineral Resources Exploration and Development,Changji,Xinjiang,831100,China)

机构地区：[1]新疆维吾尔自治区地质矿产勘查开发局第二水文工程地质大队,新疆昌吉831100

出　　处：《新疆地质》2024年第3期425-430,共6页Xinjiang Geology

基　　金：新疆乌恰县地质灾害风险调查评价项目(GYZB-KZDZFZ2023-01-02)资助。

摘　　要：在研究乌恰县孕灾地质条件及承灾体特征基础上,基于ArcGIS平台采用信息量模型与层次分析法相结合,对乌恰县地质灾害风险进行评价。选取9类崩塌、滑坡评价因子和5类泥石流评价因子,进行地质灾害易发性评价,并叠加降雨量数据得到危险性评价结果。根据人口、道路、建筑物和其他生活设施等承灾体易损性,按照一定权重叠加构建了综合易损性评价,结合承灾体易损性评价结果,采用矩阵分析方法叠加运算,得到县域单元风险评价结果,实地核查结果表明,评价结果与实际相符。为乌恰县地质灾害风险管控和防治管理提供了科学依据,同时为新疆类似地区开展地质灾害风险评价提供参考。On the basis of fully studying the geological conditions and the characteristics of disaster bearing bodies in Wuqia County,based on ArcGIS platform,the risk assessment of geological hazards in Wuqia County is carried out by combining information method and analytic hierarchy process.Select 9 types of collapse,landslide,and 5 types of debris flow evaluation factors to form a geological hazard susceptibility assessment.Based on the susceptibility,superimpose rainfall data to obtain a hazard assessment.A comprehensive vulnerability assessment was constructed by selecting population,roads,buildings,and other living facilities.Subsequently,the vulnerability and danger were stacked and graded into a matrix to obtain the risk assessment of county-level units.According to the field investigation results,the evaluation results are consistent with the actual situation,providing reference for risk control measures in different regions of Wuqia County and providing a basic basis for geological disaster prevention and control management inWuqia county.

关 键 词：乌恰县 地质灾害 风险评价 信息量模型-层次分析法 

分 类 号：P694[天文地球—地质学] N945.12[自然科学总论—系统科学]