宝鸡峡98km塬边渠道k91+900m处边坡稳定性分析

Stability analysis of slope K91+900m in edge channel of Baoji gorge 98km tableland

宝鸡峡98 km塬边渠道是关中地区的重大水利枢纽工程,为当地经济发展做出了突出贡献,该渠道建成通水已达50a,存在塬边局部边坡崩塌、溜滑和冲刷现象,也可发生渠道因渗漏引起的滑坡现象,急需对渠道两侧边坡的稳定性进行评估。本文以宝鸡峡98 km塬边渠道k91+900 m处典型黄土高边坡为研究对象,利用有限元Geostudio 2018岩土专业软件,模拟黄土高边坡在正常运行、渠道发生渗漏、发生地震3种工况下边坡发生滑坡失稳破坏的特性,并得到相应的安全系数,为该段边坡稳定性评判提供参考依据。

The edge channels of BaoJi gorge 98 km tableland is a major water conservancy project in Guanzhong area and has made outstanding contributions to the local economic development.The channel has been built and supplied water for 50 years,and the lining leakage and slope erosion phenomenon exist.Therefore,it is urgent to evaluate the stability of the slope on both sides of the channel.In this paper,a typical loess high slope at channel K91+900 m on the edge of BaoJi gorge98 km plateau was taken as the research object.The stability of the loess high slope under three working conditions of normal operation,channel leakage,earthquake was simulated by finite element software Geostudio 2018 and the corresponding safety factor was obtained,which can provide reference for the stability of this section of the slope.