摘要
针对目前路侧高滑坡稳定性分析过程中涉及滑坡滑动带岩土抗剪强度难以精确选取的复杂性问题,文章以实际工程项目为例,采用折线形传递系数法隐式解进行反分析计算、工程类比及特定工况下现场剪切试验等方法对比确定滑动带的抗剪强度指标;采用得到的抗剪强度指标分析滑坡的现状稳定性及校核支护后稳定性,提出切实可行的治理支护方案;通过支护后的边坡现状验证滑动带抗剪强度选取的正确性,为后续的类似工程提供可信参考。
In order to solve the complicated problem that the shear strength of landslide sliding zone is difficult to be accurately selected in the process of analyzing the stability of high landslide on the side of the road,this paper takes the actual engineering project as an example,and uses the implicit solution of the fold-line transfer coefficient method to carry out back analysis calculation,engineering analogy and field shear test under specific conditions to compare and determine the shear strength index of the sliding zone.Based on the obtained shear strength index,the present stability of landslide and the stability after checking the support are analyzed,and the feasible support treatment scheme is put forward.Finally,the selection of shear strength of sliding zone is verified by the current situation of slope after support,which provides a reliable reference for subsequent similar projects.
作者
刘万帮
LIU Wanbang(Yiyang Transportation Planning Survey and Design Institute Co.,Ltd.,Yiyang 413000,China)
关键词
滑坡治理
参数反算
稳定性分析
抗滑桩
建模计算
landslide control
parameter inverse calculation
stability analysis
anti-slide pile
modeling calculation
