摘要
基于层次分析法(AHP),对崩塌、滑坡、泥石流、地基土液化和软土震陷等主要地震地质灾害的影响因素进行归纳总结,构建了一套方便适用且参数易于获取的区域大尺度地震地质灾害危险性综合评价方法。首先,基于已有地震地质基础资料,确定了单因子地震地质灾害危险性分级;然后基于AHP,确定了各因子的贡献权重;最后借助Arc-GIS的空间数据分析工具,对各因子地震地质灾害危险性分级进行叠加,得到地震地质灾害危险性综合评价分级。以四川省平武县为例,基于已有的地质资料和地理基础资料,利用本文方法给出了平武县地震地质灾害危险性综合评价分级图,可供区域规划和震后应急救援参考使用。
Based on AHP theory,the factors affecting earthquake-induced geological hazards,including collapses,landslides,debris flows,soil liquefaction,and soft soil seismic subsidence,were identified,and a comprehensive evaluation method with convenient and suitable advantages was established.The parameters of the system can be easily obtained.First,based on existing seismogeological data,the classification of earthquake-induced geological hazards for single factors is provided.Second,the contribution weight of each factor is determined using AHP.Finally,using the data processing tools of ArcGIS,the classifications of earthquake-induced geological hazards for all factors were superimposed,and a comprehensive evaluation classification was derived.Taking Pingwu county in Sichuan province as an example,a classified zonation map of earthquake-induced geological hazards was produced based on existing geological and geographical data.This map can serve as a reference for regional planning and emergency rescue operations after an earthquake.
作者
王笃国
刘志成
高玮
Wang Duguo;Liu Zhicheng;Gao Wei(China Earthquake Disaster Prevention Center,Beijing 100029,China)
出处
《震灾防御技术》
CSCD
北大核心
2024年第2期306-313,共8页
Technology for Earthquake Disaster Prevention
基金
国家重点研发计划计划(2019YFC1509401)。
关键词
地震地质灾害
危险性
模糊判别
层次分析法
平武县
Earthquake-induced geological method
Hazard
Fuzzy judgement
Analytic hierarchy process
Pingwu county
