摘要
冀西北地区是湿陷性黄土广泛分布的地区之一,受地形切割的影响,形成了众多的黄土直立边坡,对当地人民的生活及出行造成了一定的影响。本文以下马圏滑坡为例分析了黄土地区滑坡的基本特征及其变形机制,并通过瑞典条分法和传递系数法对滑坡体的稳定性进行了分析计算,结果表明黄土地区滑坡以黄土内部的圆弧滑动为主。通过采取拦挡、削坡等一系列治理措施,该滑坡体目前处于稳定状态,治理工程取得了良好的社会、经济和环境效益。本文前提是黄土下伏地层为硬质岩石的情况,当为软岩时需另作分析。
The collapsible loess in the northwest of Hebei Province form numerous vertical slopes because of the cut of the terrain,which effects the life of the local people.This article analysis the basic features and the deformation mechanism of the landslides in the loess region,also calculating the stability of the landslide body by the Sweden slice method and the Transfer coefficient method by the example of the Xiamajuan landslide.The results show that the landslides in the loess region are mainly circular sliding.By landslide dams and the slope cutting,the Xiamajuan landslide is stable currently.The regulation project has got good social,economic and environment effects.The premise of this article is that the substrata of the loess is hard rocks but not soft rocks.
出处
《地质灾害与环境保护》
2016年第2期1-4,共4页
Journal of Geological Hazards and Environment Preservation
关键词
滑坡
瑞典条分法
传递系数法
landslide
the Swedish slice method
the transfer coefficient method
