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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

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【作者】 向小龙孙炜锋李国伟侯春堂谭成轩

【Author】 XIANG Xiao-long;SUN Wei-feng;LI Guo-wei;HOU Chun-tang;TAN Cheng-xuan;Institute of Geomechanics,Chinese Academy of Geological Sciences;Key Laboratory of Neotectonic and Goehazard,Ministry of Land and Resources;Land Resources Bureau of Yanjin County of Yunnan Province;

【机构】 中国地质科学院地质力学研究所国土资源部新构造运动与地质灾害重点实验室云南省盐津县国土资源局

【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。

【Abstract】 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.

【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)
  • 【文献出处】 地质力学学报 ,Journal of Geomechanics , 编辑部邮箱 ,2015年01期
  • 【分类号】P694
  • 【被引频次】5
  • 【下载频次】150
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