川西某水电站进水口下游侧边坡基于三维模型的稳定分析

摘要

In the paper,Morgenstern-Price method is adopted as two-dimensional stability calculation method on the basis of three-dimensional digital modeling technology and rock side slope plot stability limit balance analysis method according to requirements of ‘Water Conservancy and Hydropower Project Side Slope Design Specifications ’ (DL/T 5353-2006).Geostudio 2007 software is used for analyzing and calculating plot stability of one hydropower station water intake downstream side slope in Western Sichuan.Combination condition of structure face is qualitatively analyzed in three-dimensional space.The scale of the black is judged after the side slope is cut by multiple structure faces.Whether three-dimensional effects of all combinations are obvious or not is analyzed.Existing support measures are verified according to calculation achievements.%本文基于三维数字建模技术及岩质边坡块体稳定性极限平衡分析方法，根据《水电水利工程边坡设计规范》（DL／T 5353-2006）要求，采用Morgenstern-Price法进行二维稳定性计算分析，以Geostudio 2007软件，对川西某水电站进水口下游侧边坡进行块体稳定性分析及计算，重点在三维空间中定性分析结构面的组合情况，判断边坡被多条结构面切割后组成块体的规模，分析各组合的三维效应是否明显。并根据计算成果，对现有支护措施进行验证。