三峡库区云阳至江津段崩塌发育及破坏特征分析  

Analysis of development and failure characteristics of collapses of Yunyang-Jiangjin reach in Three Gorges Reservoir area

作　　者：董好刚[1] 张宏鑫[1] 陈州丰[1] 

机构地区：[1]宜昌地质矿产研究所,湖北宜昌443003

出　　处：《人民长江》2009年第21期20-22,共3页Yangtze River

基　　金：地质灾害预警项目(1212010914046;12120101640601)

摘　　要：对三峡库区云阳至江津段崩塌体的资料进行了统计处理,并对崩塌灾害发育和破坏特征进行了分析,得出了一些有益的结论:云阳至江津段崩塌体的形成与地形地貌有关,沿江分布具有不均匀性,所在斜坡以人工形成为主,岸坡结构以缓倾层状为主;破坏模式主要有4种,即风化—崩落型、压剪滑移—崩落型、拉剪倾倒—崩落型、拉裂坠落型。这些认识对于进一步调查和评价该区崩塌体的危险性奠定了基础。Data statistics of landslide body of Yunyang-Jiangjin reach in the Three Gorges Reservoir area was carried out and the development and failure characteristics of collapse were analyzed.It is shown that the formation of collapses of Yunyang-Jiangjin reach is related to topography and geomorphology and its distribution along the river is non-uniform;the slopes are mostly artificial ones and the bank slope structures are mostly gentle-dipping-layered.There are 4 main failure modes,namely,weathered-collapse,compression and shear slide-collapse,tension and shear-collapse and tension damage falling.The above understandings laid foundations for the investigation and evaluation of collapse danger in this area.

关 键 词：崩岸灾害 破坏特征 崩滑体 三峡库区 

分 类 号：P642.21[天文地球—工程地质学]