白龙江下游某顺层滑坡不同分区的成因机制分析  

Mechanism analysis on the different zone of a bedding landslide in Bailong river

作　　者：荀晓慧[1,2] 贺咏梅[1,2] 谢晔[1,2] XUN Xiao-hni;HE Yong-mei;XIE Yie(State Key Laboratory of Geohazard Prevention and Geoenvironment Protection（Chengdu University of Technology）,Chengdu 610059,China;CoUege of Environment and Civil Engineering,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]地质灾害防治与地质环境保护国家重点实验室(成都理工大学)地质灾害与环境保护编辑部,四川成都610059 [2]成都理工大学环境与土木工程学院,四川成都610059

出　　处：《科技视界》2018年第12期82-84,共3页Science & Technology Vision

基　　金：四川省教育厅科研计划重点项目(18ZA0045)

摘　　要：在现场调查、平面测绘的基础上,根据地形特征、变形破坏程度等对白龙江下游某顺层滑坡进行了平面分区,并对顺层滑坡各分区的成因机制进行了分析。分析成果表明,地形上有利的临空条件、倾坡外岩层中顺层发育的弱带形成的滑移底面、各类切层发育硬性结构面形成的分离边界等要素的综合作用,促使顺层斜坡发生了滑移-弯曲破坏,形成了滑坡,而变形体则处于滑移-弯曲破坏的孕育阶段。On the basis of field survey, the plane zoning of a landslide in the Bailong river is divided into 3 areas according to topographic features, damage degree, and so on. Then we analyzed the formation mechanism of each subarea of the bedding landslide. The results show that the favorable conditions on the terrain, the slippage bottom surface formed by the weak zone developed in the rock mass and the separation boundary formed by the structural surface, cause the failure of the slope, while the formation mechanism is sliding-bending.

关 键 词：顺层斜坡 滑移-弯曲 成因机制 

分 类 号：P642.22[天文地球—工程地质学]