云南盐津地区地质灾害发育特征及影响因素分析  

ANALYSIS ON DEVELOPMENT CHARACTERISTICS AND FACTORS OF GEOLOGICAL DISASTERS IN YANJIN COUNTY,YUNNAN PROVINCE

作　　者：向小龙[1,2] 孙炜锋[1,2] 李国伟[3] 侯春堂[1,2] 谭成轩[1,2] 

机构地区：[1]中国地质科学院地质力学研究所,北京100081 [2]国土资源部新构造运动与地质灾害重点实验室,北京100081 [3]云南省盐津县国土资源局,云南盐津657500

出　　处：《地质力学学报》2015年第1期97-107,共11页Journal of Geomechanics

基　　金：中国地质调查局地质调查项目"盐津地区地质灾害调查"(12120114035801)

摘　　要：通过地质资料分析,结合野外详细调查,揭示盐津地区地质灾害的发育特征和影响因素。研究认为,盐津地区滑坡多发生于第四纪松散坡积斜坡,崩塌多发生于砂岩、页岩、泥岩软硬相间结构斜坡与灰岩高陡悬崖,泥石流多发生于河谷沟谷;地质灾害控制性影响因素包括地质构造、地形地貌、坡体结构和岩土体工程地质岩组,诱发因素包括地震活动、降水和人类工程活动;地质灾害与人类工程活动和采矿活动关系密切。研究成果对当地防灾减灾具有重要指导作用。The geological disasters in Yanjin County in Yunnan Province are a big threat to the local people＇s safety and society development.By analysis on the geology data,combined with field work,we find that landslide occurs in the quaternary loose soil sediments.Collapse occurs in the slope where it consists of sandstone,shale,mudstone,and could be appeared in the high slope in the limestone area,debris flow and other landslide disasters related to earthquake,raining and human engineering activity and mining activity.The main controlling factors are geological structure,topography,slope structure and engineering geology rock group;the main inducing factors are earthquake activity,rainfall,and human engineering activity.Accurate analysis of the geological disasters factors will contribute to the work of disaster prevention and reduction.

关 键 词：盐津地区 地质灾害 控制因素 诱发因素 防灾减灾 

分 类 号：P642.2[天文地球—工程地质学]