摘要
通过区域地质调查、滑坡微地貌和变形破坏特征测量等手段,对甘肃舟曲江顶崖滑坡的特征和成因进行了系统研究。研究表明,该滑坡具有显著的分级分块滑动特性,降雨、滑坡区高陡的地形、河流冲刷及不良的岩土体工程地质性质是形成该滑坡的主要因素。对此采用多种极限平衡计算方法,并结合滑坡所处的地质环境评价该滑坡在天然、暴雨、地震以及暴雨和地震耦合作用下的稳定性,为该滑坡的下一步治理提供理论指导。
Through the methods of regional geological survey,landslide micro physiognomy and deformation damage characteristics measuring,the landslide characteristics and contributing factors at Jiangdingya in Zhouqu County of Gansu Province is systematically studied.Research shows that the landslide has remarkable grading block sliding characteristics,and the main factors of the landslide are the rainfall,the high and steep topography in the landslide zone,scouring river and bad engineering geological properties of rock-soil body.For this,many kinds of limit equilibrium calculation methods are used in connection with the geological and environment assessment of the landslide and stability of landslide under the action of the nature,the heavy rains and earthquakes as well as the coupled action of the earthquake and heavy rainstorm,and thus the theoretical guidance for next landslide control is provided.
出处
《中国水利》
北大核心
2011年第4期50-52,共3页
China Water Resources
基金
武警工程学院基础研究基金资助项目(WJY201038)
长安大学西部矿产资源与地质工程教育部重点实验室开放基金项目(CHD2010JC146)
交通运输部行业联合科技攻关项目(2008353361420)
关键词
滑坡
稳定性
成因
降雨
landslide
stability
cause of formation
rainfall
