岩土力学Issue(10)：2961-2970,10.
黄土坡临江I号崩滑体变形及稳定性演化规律研究
Research on deformation and stability evolution law of Huangtupo riverside slump-mass No. I
摘要
Abstract
In order to accurately grasp the deformation and stability evolution law of Huangtupo riverside slump-mass No.I during the reservoir operation, exploration tunnel group was firstly used to expose the geological structure and spatial form of the slump-mass, a geological model of double sliding zone was established based on the exposed information. Then the dynamic groundwater seepage field could be obtained by saturated-unsaturated seepage finite element method, based on which the deformation and stability evolution process was studied. The research showed that the deformation of slump-mass mainly occurred in front of shallow landslide during the drop of the water level, and has significant traction movement characteristics. The deformation evolution law was verified by measured data of global positioning system (GPS) monitoring point. Stability of the shallow landslide was fluctuated obviously during the evolution process because of the dynamic fluctuation of groundwater seepage field’s, and its critical instability velocity of drawdown of water level is 2.0 m/d. Consequently, the overall stability of Huangtupo riverside slump-mass No.I is fine;but there still exists a possible that the front of shallow landslide may be instable locally under rainfall and reservoir water level drawdown.关键词
黄土坡滑坡/水位波动/变形机制/稳定性/演化规律Key words
Huangtupo landslide/waterlevel fluctuation/deformation mechanism/stability/evolution law分类
建筑与水利引用本文复制引用
倪卫达,唐辉明,胡新丽,吴益平,苏爱军..黄土坡临江I号崩滑体变形及稳定性演化规律研究[J].岩土力学,2013,(10):2961-2970,10.基金项目
国家重点基础研究发展计划(973)项目（No.2011CB710606，No.2011CB710604）；国家自然科学基金重点项目（No.41230637）。 （973）
