摘要
堆石坝坝坡极限平衡稳定计算时,堆石体的粘聚力一般取为0kPa,使得计算安全系数较小,与实际情况不符。本文结合山西省张峰水库黏土斜心墙堆石坝坝坡稳定计算,探讨了应用非线性强度参数进行坝坡极限平衡分析的方法。采用该方法可有效避免堆石体稳定安全系数低估的问题,可供类似工程参考。
The rock-fill cohesion is generally OkPa during calculation of rock-fill dam slope limit equilibrium stability; thereby the calculation safety coefficient is smaller, which is inconsistent with actual condition. The method of applying nonlinear strength parameters in dam slope limit equilibrium analysis was discussed in the paper by combining clay inclined core wall rock-fill dam slope stability calculation of Shanxi Zhangfeng Reservoir. The method can effectively avoid the problem of underestimation of rock-fill stability safety factor, thereby providing reference for similar projects.
出处
《中国水能及电气化》
2013年第11期59-65,共7页
China Water Power & Electrification
关键词
土石坝
稳定分析
极限平衡法
非线性强度
earth-rock dam
stability analysis
limit equilibrium method
nonlinear intensity
