大渡河松坪滑坡形成机制及稳定性分析  

Analysis on Formation Mechanism and Stability for the Landslide in Songping beside Daduhe River

作　　者：吴亚子[1] 傅荣华[2] 王健[2] 张元才[2] 杨人凡[2] 蔡明[2] 

机构地区：[1]西南石油大学资源与环境学院,成都610500 [2]成都理工大学环境与土木工程学院,成都610059

出　　处：《水土保持研究》2011年第2期62-65,共4页Research of Soil and Water Conservation

摘　　要：松坪滑坡变形主要表现为滑坡后部蠕变拉裂和滑坡前缘的蠕滑,目前坡体局部已处于不稳定状态,因此对该坡体进行稳定性分析尤为重要。根据坡体的结构及形态特征详细分析了滑坡的形成机制,判定松坪滑坡的破坏模式为蠕滑拉裂。同时采用地质分析及量化评价方法对该滑坡的稳定性进行了分析。结果表明:在天然状态下稳定性良好;但在天然+暴雨的条件下,滑坡体处于不稳定状态。最后,根据以上分析提出合理的防治措施。Deformation of Songping landslide is mainly creep-cracking at back and creeping in the front of landslide.Part of the slope is unstable.Therefore,analysis on the slope stability becomes very important.This article analyzed the formation mechanism of the landslide according to its structure and morphological character,and determined that the failure pattern of the landslide is creep-cracking.The stability was calculated by methods of geologic analysis and quantitative evaluation.The result is obtained that the stability is well in natural situation.But when it comes to natural storm,the landslide is instability.Finally,reasonable control suggestions are given based on the above analysis.

关 键 词：滑坡 形成机制 稳定性 蠕滑拉裂 

分 类 号：P642.22[天文地球—工程地质学]