云南省上江乡七棵树滑坡稳定性分析评价研究  

ANALYSIS AND EVALUATION OF LAND SLIDE STABILITY IN QIKESHU OF SHANGJIANG VILLAGE,YUNNAN PROVINCE

作　　者：蒋昌盛[1] 张世涛[1] 

机构地区：[1]昆明理工大学国土资源与工程学院,昆明650093

出　　处：《地质灾害与环境保护》2016年第4期13-20,共8页Journal of Geological Hazards and Environment Preservation

基　　金：云南省1:50 000地质灾害详查资助项目(DZXC2013-21)

摘　　要：滑坡是斜坡岩土体沿着贯通的剪切破坏面所发生的滑移地质现象,是仅次于地震和洪水的一种严重的地质灾害。云南省西部的滑坡尤为严重,本文依托云南省泸水县1∶50 000地质灾害详细调查项目对泸水县境内七棵树滑坡做了整体全面的分析。在实地勘察、打钻的基础上,运用极限平衡理论对该滑坡进行稳定性分析,采用折线型滑面、传递系数法进行计算。由于影响滑坡的因素较多,为了得到可靠的结论,本文选取了3条剖面且同时通过3种不同的工况进行计算。计算分析结果表明:七棵树滑坡在天然状态条件下处于基本稳定-稳定状态,暴雨状态下Ⅰ剖面处于欠稳定状态,地震状态Ⅰ剖面、Ⅲ剖面处于欠稳定状态。综合相关结论及该地区人文环境提出了相应的治理方案。Land slide is a kind of glide geologic phenomenon that rock mass slip down at the slip curve surface, which is a serious geological disaster after earthquake and flood disaster, especially at the west of Yunnan Province. This essay is based on the 1 ： 50 000 general exploration of geological disaster program in Lushui County of Yunnan Province, and fully analyze about Qikeshu of Lushui County. With the reconnaissance and drill help, we try to analyze the land slide stability by limit equilibrium theory and calculate by mansard sliding surface and transfer coefficient method. Because of the many influencing factors, we use three different profiles and calculate in three different ways to get the reliable conclusion. According to the analysis, Qikeshu land slide is under basically stable to stable. Profile 1 stays understable at rainstorm, profile 1 and 3 stay understable at earthquake. According to relative conclusion and cultural environment, this essay gives some countermeasures and suggestions.

关 键 词：七棵树 滑坡 稳定性 分析评价 治理 

分 类 号：P642.22[天文地球—工程地质学]