摘要
本文在分析重力坝深层抗滑稳定双斜面法的基础上,摒弃了抗力体铅直破裂面的假设,认为深层滑动存在三个倾斜的破裂面,导出了坝后具有倾斜基岩表面时求重力坝下游抗力体破裂角β_1、β_2的基本方程组和安全系数K的计算公式,编制了可供实际应用的计算程序。
Recently, 'the Wedge Analysis Method' of conventional limit equilibrium method is being widely used for stability analysis against deep sliding of gravity dam, which is based on the assumption of a vertical fracture sliding plane. But the results of finite element method and structure model tests show that the fracture sliding plane is not vertical and there exist three oblique sliding planes. Therefore, 'Three Oblique Sliding Planes Method' for stability analysis against deep sliding of gravity dam is proposed and further studied, and the basic equations to calculate the sliding anglesβ_1、β_2 and the safety factor K are achieved. A calculating program is carried out by which an actual example is calculated.
出处
《水电站设计》
1992年第4期51-56,共6页
Design of Hydroelectric Power Station
关键词
重力坝
三倾斜面法
深层抗滑
gravity dam
stability analysis
fracture plane
Three Oblique Sliding Planes Method
