基于AHP模型的岩溶地面塌陷危险性评价
Risk assessment of karst ground collapse based on AHP model
李明超 1余建民 2孙亚雯 1侯利阳1
作者信息
- 1. 河南省第五地质勘查院有限公司,河南郑州 450001
- 2. 华北水利水电大学地球科学与工程学院,河南郑州 450045
- 折叠
摘要
本文以桐柏县朱庄镇朱庄村岩溶地面塌陷为例,收集了研究区地质环境资料、水文地质资料及工程地质资料,选取基岩岩性、岩溶发育程度、覆盖层厚度、透水能力、水位波动幅度、地下水位埋深六个主控因素,将层次分析法(Analytic Hierarchy Process,简称AHP)确定的权重与GIS处理的各主控因子专题图进行叠加,进而对桐柏县朱庄岩溶地面塌陷进行危险性分区评价.根据与已发生的塌陷对比,验证了AHP-GIS耦合评价在朱庄岩溶地面塌陷危险性评价应用中结果的准确性,已发生岩溶塌陷点几乎都位于高危险区.评价结果可为朱庄岩溶地面塌陷的防治提供参考依据,评价方法对其他岩溶地面塌陷危险性评价具有借鉴意义.
Abstract
This article takes the karst ground collapse in Zhuzhuang Village,Zhuzhuang Town,Tongbai County as an ex-ample,and collects geological environment data,hydro-geological data,and engineering geological data from the research ar-ea.Six main control factors are selected,including bedrock lithology,karst development degree,cover layer thickness,per-meability,water level fluctuation amplitude,and groundwater level burial depth,By overlaying the weights determined by An-alytic Hierarchy Process(AHP)with the thematic maps of various main control factors processed by GIS,the risk zoning eval-uation of karst ground collapse in Zhuzhuang,Tongbai County is conducted.Based on the comparison with the collapse that has occurred,the accuracy of the AHP-GIS coupling evaluation results in the risk assessment of karst ground collapse in Zhuzhuang has been verified.Almost all the karst collapse points that have occurred are located in high-risk areas.The eval-uation results can provide a reference basis for the prevention and control of karst ground collapse in Zhuzhuang,and the evalu-ation method has reference significance for the risk assessment of other karst ground collapses.
关键词
岩溶地面塌陷/AHP模型/Arcgis/危险性评价Key words
karst collapse/AHP model/Arcgis/hazard assessment引用本文复制引用
出版年
2024
NETL
NSTL
万方数据