软硬互层岩滑坡的变形特征及稳定性分析——以湖南郴州S215公路K3+172~K3+252段滑坡为例  

Deformation Characteristics and Stability Analysis of Soft and Hard Interbedded Rock landslide--Taking the Landslide at K3+172~K3+252 Secetion of S215 Road Chenzhou,Hunan Province as an Example

作　　者：马艾阳 唐振平 李玲珂 罗辉[4] 谢焱石 MA Aiyang;TANG Zhenping;LI Lingke;LUO Hui;XIE Yanshi(School of Resource Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, China;Hunan Key Laboratory of Rare Metal Minerals Exploitation and Geological Disposal of Wastes, Hengyang, Hunan 421001, China;Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing, Zhejiang 312000, China;School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China)

机构地区：[1]南华大学资源环境与安全工程学院,湖南衡阳421001 [2]湖南省稀有金属矿产开发与废物地质处置技术重点实验室,湖南衡阳421001 [3]浙江省岩石力学与地质灾害重点实验室,浙江绍兴312000 [4]长沙理工大学交通运输工程学院,湖南长沙410114

出　　处：《南华大学学报（自然科学版）》2021年第6期29-34,共6页Journal of University of South China：Science and Technology

基　　金：浙江省岩石力学与地质灾害重点实验室开放基金项目(ZJRMG-2020-05);大学生研究性学习和创新性实验计划项目(S201910555111)。

摘　　要：在软硬互层岩石中,地质灾害极易发生。本文以S215公路K3+172~K3+252段滑坡为研究对象,分析了该滑坡的空间形态、物质组成和变形特征,采用极限平衡法,选择折线型滑动模型,在两种不同工况下对其稳定性进行了计算,最后对滑坡稳定性进行了评价。滑坡在天然工况I条件下为基本稳定状态,在暴雨工况Ⅱ条件下为不稳定状态。提出了多级抗滑桩工程、截排水工程、坡腰平台复绿工程、道路路面修复工程和监测工程相结合的综合防治工程,为该滑坡的后期治理提供了依据。In soft and hard interbedded rocks,geological disasters are very easy to occur.About landslide at K3+172~K3+252 section of S215 road,spatial morphology,material composition and deformation characteristics were analyzed.Its stability under two different working conditions was calculated and then evaluated with folded line sliding model by limit equilibrium method.The landslide is basically stable under natural condition I and unstable under rainstorm conditionⅡ.A comprehensive prevention and control project combining multistage anti-slide pile engineering,drainage engineering,green engineering,road reconstruction engineering and monitoring engineering is reliable for the later treatment.

关 键 词：S215公路K3+172~K3+252段滑坡 变形特征 滑坡稳定性 综合防治工程 

分 类 号：P642.22[天文地球—工程地质学] U216.419.1[天文地球—地质矿产勘探]