常吉高速公路K162＋800～K163＋000段岩坪滑坡病害分析及处治措施研究

YanPing Landslide＇ s Forming Mechanism Analysis and it＇s reatment Methods Reasearch in Chang （De） -Ji （Shou） Express Highway Section of K162 ＋ 800 -K163 ＋ 000

常吉高速公路K162＋800-K163＋000段岩坪滑坡是湖南省常吉高速公路上规模最大的滑坡，是近二十年来湖南公路建设史上规模最大的红砂岩滑坡，也是湖南公路建设史上由推移式滑坡＋牵引式滑坡组合而成的性质最为复杂的岩石滑坡。通过对地质资料的深入研究，利用地面位移监测网等多种手段，深入剖析了滑坡产生的原因及特征；合理选取地质计算参数，利用运动单元法进行稳定性分析，对《公路路基设计规范》（JTCD30—2004）在边坡计算分析方面的不足之处予以补充，对各种处治方案进行了研究探讨，提出了最佳处治方案。

YanPing Landslide, which lies in section K162 ＋ 800 -K163 ＋ 000, is the largest scale landslide in Chang （De） -Ji（Shou） Highway, also, it is the largest scale red -sandstone landslide by far twenty years in Hunan highway＇s construction history, at the same time, it is the most complex stone landslide for it is combined by plusus landslide and tractive landslide in Hunan highway＇s construction history. Based on the interventional analyse of geology material, used several ways, such as ground displacement monitoring net, this paper analysed the landshde＇s forming mechanism and its characters deeply. Select the geology count parameter properly, used Motion - Unit Method proceed it＂ s stability analysis, this paper refilled the insufficient section of side slope calculation in Specification for Design of Highway Subgrade （JTG D30 -2004）. In the end , this paper studied various treatment alternative, then developed the best treatment method.