陕西凤凰山滑坡体稳定性评价及敏感性分析  

The Stability Evaluation and Sensitivity Analysis on the Shaanxi Fenghuang Mountain Slope

作　　者：董瑞朝 陈孝刚[2,3] 陶志刚[2,3] 

机构地区：[1]中国石油集团工程设计有限责任公司华北分公司,河北任丘062550 [2]中国矿业大学(北京),100083 [3]深部岩土力学与地下工程国家重点实验室,北京10083

出　　处：《地下空间与工程学报》2012年第A02期1737-1742,共6页Chinese Journal of Underground Space and Engineering

基　　金：国家自然科学基金项目(41040027);教育部创新团队(IRT0656)

摘　　要：2008年,四川汶川地震触发陕西凤凰山滑坡体上多处出现裂缝,长达百余米,局部出现蠕变、滑塌等险情。根据其工程地质和水文地质状况,利用边坡稳态MSARMA分析方法对其稳定性以及影响稳定性的因子进行敏感性分析,发现排水率和地震烈度是影响边坡稳态的两个十分活跃的环境动力,是边坡变形破坏的诱发因素。然后采取了一些必要的排水及治理加固措施,改善该滑坡体的稳定性现状,并利用滑动力实时监测预警系统对其进行有效监测。自2008年对该滑坡体进行治理监测以来,该区稳定性一直很好,滑坡体上没有产生明显裂缝及位移现象,表明针对影响滑坡体稳定性的敏感性因素而进行的边坡加固治理方案,产生了明显的效果,具有一定的工程指导意义。In 2008 year,because of Sichuan Wenchuan earthquake,at Fenghuang mountain slope diverse cracks for more than 100 meters appeared,and some regional creep deformation and slumping phenomenon happened.According to the engineering geology and hydrogeology condition of the Fenghuang mountain slope,the slope stability and its influence factors are analyzed by the MSARMA slope steady-state analysis method.It is found that the slope drainage rate and the earthquake intensity are two very active environmental dynamics and are slope deformation and failure＇s precipitating factor.At the same time,some necessary governance reinforcement measures are taken to improve the stability of the slope current situation,and the sliding force remote real-time monitor and warning system is also used effectively to monitor the slope stability.Since the landslide is governed and monitored in 2008,the stability has been very good,there are no obvious cracks and displacement phenomenon.It shows that the slope reinforcement treatment project aimed at the sensitivity influence factors of the stability of landslide,has significant effect,and has certain engineering significance.

关 键 词：滑坡体 稳定性 影响因素 防治监测 

分 类 号：TU457[建筑科学—岩土工程]