摘要
由于山体的特殊地质背景及人类工程活动,四川省南江县陈家湾滑坡在平面位置上以中间山梁为界分为Ⅰ号、Ⅱ号滑坡及潜在不稳定斜坡。通过地质灾害勘查,研究了滑坡特征及其地质成因机制,并进行了稳定性分析评价。结果表明:仅Ⅰ号滑坡在暴雨工况下处于欠稳定状态。根据滑坡地形特征、稳定性分析结果,结合保护对象,对Ⅰ号滑坡提出了"抗滑桩+截水沟"和"预应力锚索+抗滑短桩+截水沟"两种防治方案。通过对比分析,推荐"抗滑桩+截水沟"为实施方案。
Due to the mountain＇s special geological background and human engineering activities,Chenjiawan landslide was divided into landslide Ⅰ# and landslide Ⅱ# as well as potential unstable slope by the middle ridge in the plane position. By geological disasters investigation,landslide＇s characteristics and geological origin mechanism were studied,and the stability analysis was evaluated. The results showed that only landslide Ⅰ# was in unstable state in rainstorm conditions. According to the landslide＇s terrain features and stability analysis,combined with the situation of the protected objects,two prevention and treatment programs of ＂anti-slide piles ＋ drainage ditches＂and ＂pre-stressed anchors ＋ short anti-slide piles ＋ drainage ditches＂were proposed for landslide Ⅰ#. Through comparative analysis,＂anti-slide piles ＋drainage ditches＂ was recommended as implementing scheme.
出处
《探矿工程（岩土钻掘工程）》
2016年第1期14-19,共6页
Exploration Engineering:Rock & Soil Drilling and Tunneling
基金
中国地质调查局工作子项目"川东巴河流域地质灾害调查"(编号:1212011220169)
关键词
基岩滑坡
成因分析
稳定性评价
防治措施
陈家湾滑坡
bedrock landslide
causes analysis
stability evaluation
prevention measure
Chenjiawan landslide
