安徽省黄山市休宁县地质灾害孕灾地质条件分析

Investigation and evaluation of geological hazard risks in Xiuning County,Huangshan City,Anhui Province:Analysis of geological conditions for hazard development

依据“安徽省黄山市休宁县1∶50 000地质灾害风险调查评价”项目,在县域孕灾地质条件调查基础上,主要从地形地貌、工程地质岩组、斜坡结构、地质构造内在控制因素、人类工程活动和降雨的双重诱发因素等方面对县域内地质灾害进行分析和总结,进一步研究了三大岩类地质灾害孕灾主控因素。全县按孕灾地质条件分区,划分为3个大区14个亚区。分析研究地质灾害隐患早期识别和规律认识,为保障人民群众的生命、财产安全和加强休宁县地质灾害防治管理提供基础依据。

Based on the project 1∶50000-scale Investigation and Evaluation of Geological Hazard Risks in Xiuning County,Huangshan City,Anhui Province,and the survey of geological conditions for hazard development in the county,this paper analyzes and summarizes geological hazards in the county in terms of landform,engineering geo‐logical rock group,slope structure,internal control factors of geological structure,human engineering activities and rainfall,and further discusses the main factors controlling the hazard development in the well-known three major rock types.The geological conditions for hazard development are divided into 3 regions and 14 sub-regions for deepening early recognition and understanding of the development law of geological hazards,and providing a basis for protect‐ing the lives and properties and control of geological hazards in Xiuning County.