小湾电站进水口边坡的三维刚体极限平衡分析

Stability Analysis of Power Intake Slope of Xiaowan Hydropower Project Using 3D Rigid Limit Equilibrium Method

利用三维刚体极限平衡法对小湾电站进水口边坡进行了稳定分析,计算了边坡开挖成型后不加固及加固情况下的稳定安全系数,并进行了参数变化的敏感性分析,比较了锚索和洞塞两种加固方案的优缺点,分析结果对实际工程的加固设计具有较大的参考价值。

In this paper the 3D rigid limit equilibrium method is used to analyze the power intake slope stability of the Xiaowan Hydropower Project. The stability safety factors of the slope with reinforcement and without reinforcement after its excavation and shaping are calculated respectively. The sensitivity analysis of parametric variation is carried out. A comparison is made between the two reinforcement schemes, i.e. cables and concrete hollow fills in their merits and demerits. The analysis results are worthy to be used for reference in the reinforcement design of the projects of this kind.