岩堆体边坡稳定性的三维数值模拟分析

结合云南溪洛渡水电站专用线典型边坡工程,探讨和构建了复杂岩堆体的三维计算模型,讨论了其岩土指标取值和计算参数,运用三维快速拉格朗日差分法软件FLAC3D对复杂岩堆体K20段边坡进行了三维数值模拟计算,并将计算结果进行了后处理分析.根据计算结果系统分析和比较了边坡施工处理前后不同工况下,K20段边坡的稳定性,比较分析了抗滑桩、锚杆、降雨等对该段公路边坡稳定性的影响.根据稳定性分析结果,给出了溪洛渡水电站专用线该段边坡稳定性的安全评价及处理意见.

Three-Dimensional Numerical Simulation Study on Rock Slope Stability

This paper probes into and developed a three-dimensional numerical simulation of intricate accumulation of rock mass,considering the typical slope project in leased line of XiLuodu Hydropower station in Yunnan province,discussing how to choose the parameters of soil and rock mass,then using three-dimensional Fast Lagrangian Analysis of Continua software FLAC^3D to make a three-dimensional simulation of the slope in K20,finally,analyzing the result.The stability of slope in different operating condition before and after slope treatment in K20 has been analyzed and compared according to the result,and the influence of rainfall,antislippile,rock-bolt on the stability of slope also has been sudied.According to the analytic result of slope stability,the safety evaluation and managing proposal of the leased line stability of XiLuodu power station have been given.