玉树地区地质构造与灾害发生的关系

Relation of Geologic Structure with Geological Hazards in Yu Shu Area

地质灾害,是指在自然或者人为因素的作用下形成的,对人类生命财产、环境造成破坏和损失的地质作用(现象)。一旦发生地质灾害,灾情往往比较严重,造成的人员伤亡以及经济损失巨大。以2010年4月14日,在青海省玉树藏族自治州玉树县发生的最高震级7.1级地震为例,通过地震后大量的野外地质调查和室内资料整理,归纳总结出玉树县各类地质灾害(滑坡、崩塌以及不稳定斜坡)的分布特征,分析并阐述了地质构造与地质灾害形成之间的关系。

Geological disasters,which are formed under the action of natural or man-made factors,will cause damage and loss to human life,property and environment.In case of a geological disaster,it tends to be more serious,and causes huge casualties and property losses.This paper takes a Ms 7.1 earthquake occurred in Yushu county,Qinghai province,China on April 14th 2010,as an example.Through geological field investigation and data processing,the characteristics of distribution of the geological hazards(landslide,collapse and unstable slope)in Yushu County were discussed,the relationship of geological structure and geological hazards was analyzed.