基于层次分析法和GIS的沙坡头区地质灾害易发性评价  

Assessment of Geological Hazard Susceptibility in Shapotou District Based on Analytic Hierarchy Process and GIS

作　　者：康登成 徐磊 杨凌雪 单斌 段佳 梁新富 段志刚 张庆平 KANG Deng-cheng;XU Lei;YANG Ling-xue;SHAN Bin;DUAN Jia;LIANG Xin-fu;DUAN Zhi-gang;ZHANG Qing-ping(Ningxia Hui Autonomous Region Hydrological and Environmental Geological Survey Institute,Yinchuan 750021,China)

机构地区：[1]宁夏回族自治区水文环境地质调查院,银川750021

出　　处：《价值工程》2024年第36期29-32,共4页Value Engineering

摘　　要：在研究分析沙坡头区孕灾地质条件、地质灾害类型及其发育特征的基础上,选取影响地质灾害发育的因素作为评价指标,运用层次分析法,通过建立层次结构模型、构造判断矩阵、计算权向量及一致性检验,确定各评价指标权向量。依靠GIS对评价指标信息进行提取和叠加计算,并根据野外综合认识对部分易发评价结果单元进行了适当修正,最终形成沙坡头区地质灾害易发性分区图。Based on the study and analysis of the geological conditions,types,and development characteristics of geological hazards in Shapotou District,factors affecting the development of geological hazards are selected as evaluation indicators.The Analytic Hierarchy Process is used to establish a hierarchical structure model,construct a judgment matrix,calculate weight vectors,and perform consistency checks to determine the weight vectors of each evaluation indicator.By relying on GIS to extract and overlay evaluation index information,and making appropriate corrections to some easily occurring evaluation result units based on field comprehensive understanding,the geological hazard susceptibility zoning map of Shapotou District was finally formed.

关 键 词：地质灾害 易发性 层次分析法 GIS 沙坡头区 

分 类 号：P694[天文地球—地质学]