宣汉县滑坡地质灾害孕灾地质条件分析  

Analysis on Geohazard Related Geological Conditions of Landslide in Xuanhan County

作　　者：陈思尧 刘虹强[1] 袁兆平[1] 杨剑红 朱国宝 刘勇[1] CHEN Siyao;LIU Hongqiang;YUAN Zhaoping;YANG Jianhong;ZHU Guobao;LIU Yong(Regional Geological Survey Team,BGEEMRSP,Chengdu 610213)

机构地区：[1]四川省地质矿产勘查开发局区域地质调查队,成都610213

出　　处：《四川地质学报》2023年第3期476-482,共7页Acta Geologica Sichuan

基　　金：达州市地质灾害风险调查评价项目(项目编号:511701202100125)。

摘　　要：滑坡地质灾害是宣汉县发育最广泛、影响最大的灾种,严重威胁人民群众的生命财产安全。通过资料收集、野外调查与综合研究,对宣汉县滑坡地质灾害的发育特征与孕灾地质条件进行分析与研究。结果表明:宣汉县滑坡地质灾害发育时空特征明显,且与地貌类型、坡度、地形起伏度、工程地质岩组、距断裂距离以及斜坡结构等密切相关。XuanhanCounty is located at the junction of the southern foothills of Daba Mountain and the northeast of Sichuan Basin,with big topographic relief,andthe geohazards occur frequently.The landslide is the most widely developed and most influentialgeohazard in Xuanhan County,which seriously threatening the safety of people's lives and property.Based on data collection,field investigation and comprehensive research,the authors analyzed and studied the development characteristics and geological conditions of geohazard in XuanhanCounty.The results show that the development of landslide geohazards has obvious temporal and spatial characteristics,and is closely related to the geomorphic type,slope,topographic relief,engineering geological petrofabric,distance from fault and slope structure,which reveals the basic laws of landslide geohazard related geological conditions,and provides a basic basis for the prevention and control of landslide geohazards in in Xuanhan County.

关 键 词：滑坡 地质灾害 孕灾地质条件 宣汉县 

分 类 号：P642.22[天文地球—工程地质学]