【摘要】 为更准确地分析地震作用下水库边坡的稳定性,结合地质勘察资料,选取典型边坡断面利用Quake/W和Slope/W耦合建立数值模型,以小锡伯提水库为例,分析其在水平地震波加速度峰值为0.05g的情况下,不同监测点的位移、加速度、速度响应情况以及边坡的位移场、应力场、应变场,并对地震作用下安全系数时程曲线进行解析。结果表明:地震作用下边坡的安全系数由天然状态下的1.036降到0.892,稳定性显著降低,不满足工程长期运行安全要求;最危险滑面在边坡中部,呈近似圆形沿破碎带下滑,与地质勘探结果相吻合。本文为利用Quake/W和Slope/W耦合分析解决边坡动力问题提供了参考案例。更多还原

【Abstract】 To analyze the stabitity of reservoir slope under earthquake more accurately,combined with the geological survey data,typical slope section’s numerical model was established by Quake/W coupled with Slope/W.A case study of xiaoxiboti reservoir,the displacement,acceleration and velocity trend of different monitoring points,and the displacement field,stress field and strain field of slope were analyzed at the horizontal seismic wave acceleration’s peak value was 0.05 g.Meanwhile,the FOS time history wave was analyzed.The results shows that the FOS of slope under earthquake is 0.892 while it is 1.036 under natural state,and the stability of slope is significantly dropped down that means it does not meet the safety requirement of the long running of project.The critical slip surface is at the middle of slope and is nearly a circle.This is consistent with the geological exploration.This paper also provides a reference example to solve slope dynamic problem by Quake/W coupled with Slope/W.更多还原