摘要
边坡抗剪强度参数的确定是边坡稳定计算的关键。对于粗粒的碎石土、砾质土边坡,由于原状试样不易采取,且现场或室内试样制备难度较大,往往难以通过直接试验得到土的抗剪参数。采用古典卡尔曼边坡分析法反算求解粗粒土边坡抗剪强度参数,并在某水电站边坡勘察中得到了较好地应用,其结果与临近工程边坡开挖情况基本吻合,可供边坡勘察工作者参考使用。
The determination of the parameters of slope shear strength is the key points of slope stability calculation. For coarse debris soil and gravelly soil slope,it is often difficult to obtain the shear resistance parameters of soil by direct tests due to the fact that the original sample is not easy to be taken and the preparation of the sample in the field or in the lab is difficult. In this paper,the classical Kalman slope stability analysis method is used to inverse calculate the shear strength parameters of the coarse-grained soil slope. The results are in good agreement with the excavation slope of the adjacent project,and can be used as reference for the geological engineer in slope stability.
作者
赵之举
赵一桐
Zhao Zhiju;Zhao Yitong(Shanghai Investigation,Design ＆ Research Institute Co.,Ltd,Shanghai 200434;China Three Gorges University,Yichang,Hubei 443002)
出处
《资源环境与工程》
2018年第3期443-446,共4页
Resources Environment & Engineering
关键词
粗粒土
抗剪强度
峰值强度
临界坡高
边坡破裂角
coarse-grained soil
shear strength
peak strength
critical height
slope rupture angles
