摘要
地质灾害易发性评价工作需要进行大量的数据处理,处理方法的选择影响评价结果可靠性与评价工作的效率。选取地形地貌、工程地质岩组、地质构造、水文地质条件、人类工程活动等参评因子,利用信息量法基于GIS平台对空间数据进行自动叠加分析,得出各影响因子综合影响下的客观易发性分区结果,然后结合专家的主观经验,经定性与定量结合分析,对分区结果进一步修正,实现对地质灾害易发性的科学评价。
A lot of data processing is needed in the evaluation of geological disaster susceptibility.The selection of processing methods affects the reliability of evaluation results and the efficiency of evaluation.In this paper,the factors of topography,engineering geological rock group,geological structure,hydrogeological conditions,human engineering activities and so on are selected.The information method is used to automatically overlay and analyze the spatial data based on GIS platform,and the objective susceptibility zoning results under the comprehensive influence of various factors are obtained.The zoning results are further revised to realize the scientific evaluation of geological disaster susceptibility.
作者
马振
谭光超
季璇
Ma Zhen;Tan Guangchao;Ji Xuan(Hydrogeology and Engineering Geology Brigade of Hubei Geological Bureau,Jingzhou,Hubei 434020)
出处
《资源环境与工程》
2021年第5期667-673,680,共8页
Resources Environment & Engineering
基金
湖北省三峡库区宜昌长江干(支)流斜坡劣化带地质灾害调(勘)查(YCZ0756-201901-01F)。
关键词
GIS
信息量法
地质灾害
易发性评价
九畹溪
GIS
information quantity method
geological disasters
susceptibility assessment
Jiuwanxi
