摘要
本文以湖北省地质灾害高易发区之一鄂州市为研究区,在鄂州市地质灾害详细调查的基础上,选取地貌单元、高差、坡度、工程地质岩组、断层、开矿活动6个影响因素,应用加权信息量模型,通过GIS空间分析平台,开展研究区易发性评价。研究结果表明:研究区划分为高易发、中易发、低易发三个区,分别占研究区面积的4.58%,13.59%,81.83%。通过受试者工作特征曲线(ROC)的线下面积(AUC)进行检验,其值为89.2%,评价精度较高。本文湖北省鄂州市为例开展地质灾害易发性评价、结果分析以及预测精度评价等,为湖北省内县域地质灾害易发性评价提供理论指导和技术参考。
Based on the detailed investigation of geological disasters in E ＇zhou City,this paper made an susceptibility assessment of the geological disasters in E＇zhou City,Hubei Province. Six influence factors were chosen to be the evaluation indices including the geomorphic unit,the altitude difference,the gradient,the engineering geological group,the engineering geology,and mine mining. Based on GIS data model,a weighted information value model is used to carry out the evaluation of the research area. The results show that the study area was classified into three categories,high susceptibility zone,middum medium susceptibility zone,and low susceptibility zone,taking an area proportion of 4. 58%,13. 59%,81. 83%,respectively. The value of the AUC（Area Under Curve） of ROC（Receiver Operating characteristic Curve） was 89. 2%,showing that accuracy of assessment was reasonable. This paper desctibes the theoretical methods and technical route for the regional geological disasters susceptibility evaluation assessment in the district. The research provides provides a theoretical guidance and technical reference for the nationwide county geological hazards evaluation.
作者
张波
石长柏
肖志勇
张金朝
邬磊
习彪
卢胜周
ZHANG Bo;SHI Changbo;XIAO Zhiyong;ZHANG Jinzhao;WU Lei;XI Biao;LU Shengzhou(The Fifth Geological Brigade of Hubei Geological Bureau, Huangshi, Hubei 435004, Chin)
出处
《中国地质灾害与防治学报》
CSCD
2018年第3期101-107,共7页
The Chinese Journal of Geological Hazard and Control
基金
湖北省国土资源厅鄂州市地质灾害详细调查
关键词
GIS
加权信息量
地质灾害
易发性
GIS
weighted information value
geological hazards
susceptibility
