西北口水库溢洪道右侧滑坡体稳定性分析与治理方案

Stability Analysis and Treatment Plan for the Slide Body on the Right Side of Xibeikou Reservoir Spillway

受暴雨影响,西北口水库溢洪道右侧滑坡体出现过局部垮塌,稳定性计算分析表明滑坡体Ⅰ区在各工况条件下稳定系数均不满足规范要求,需要进行加固处理。根据滑坡体特征,针对性地进行了滑坡治理方案筛选,确定了地表截排水+抗滑桩+前缘回填+格构护坡加固的工程治理方案。计算结果表明治理方案实施可有效提高边坡稳定性,可为类似滑坡体治理提供借鉴。

Due to heavy rainfall,a localized collapse occurred on the right side of the the Xibeikou Reservoir spillway.Stability analyses indicates that the stability coefficient of the landslide areaⅠdoes not meet the specification requirements under various working condition,which needs reinforcement treatment.Based on the characteristics of the landslide,we determine a landslide remediation plan which includes surface interception and drainage,antislip piles,leading edge backfill,and grid protection slope reinforcement.The calculation results indicate that the implementation of the treatment plan can effectively improve the slope stability and can provide reference for the treatment of similar landslide.