湖北省杉树槽滑坡成因机制分析  

Formation Mechanism of Shashucao Landslide in Hubei Province

作　　者：易武[1,2] 黄鹏程[1] 

机构地区：[1]三峡大学土木与建筑学院,湖北宜昌443002 [2]三峡大学长江三峡国家野外科学观测研究站,湖北宜昌443002

出　　处：《重庆交通大学学报（自然科学版）》2016年第3期89-93,114,共6页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：囯家自然科学基金项目(41302260;41172298);湖北省自然科学基金创新群体项目(2012FFA040)

摘　　要：长江三峡地区滑坡众多,杉树槽滑坡属于典型的顺层基岩滑坡。通过对滑坡发生后追踪调查,介绍了滑坡的地理位置、周边地质概况及其基本地质特征,并将滑坡发生前后的地形地貌和地质特征进行对比,直观地表明了滑坡发生、发展及运动的过程。最后,探讨了湖北省杉树槽滑坡发生的影响因素及形成机理,并认为脆弱的地层结构和不利的地貌形态是滑坡发生的内因,而降雨是诱发滑坡的关键外在因素,其为典型的剧动推移式降雨型顺层岩质滑坡。There are plenty of landslides in Three Gorges reservoir area and Shashucao landslide is a typical bedding rock landslide. Through follow-up investigation after the landslide occurrence, the geographical location, the surrounding geology and basic geological characteristics of landslide were introduced. And the topography and geomorphy as well as geological characteristics before and after landslide were contrasted, which intuitively indicated the process of landslide occurrence, development and motion. Eventually, the influence factors and formation mechanism of Shashucao landslide in Hubei province were discussed. It is discovered that the vulnerable stratum structure and unfavorable geomorphologic shape are the internal causes of landslide occurrence, and rainfall is the key external factor to induce landslide. Shashucao landslide is a typical elapse precipitation type of bedding rock landslide.

关 键 词：岩土工程 滑坡 顺层基岩 地质特征 降雨 

分 类 号：P642[天文地球—工程地质学] U416.14[天文地球—地质矿产勘探]