【摘要】 西静河水库位于地震频发区,近坝库岸坡陡峻,其左岸边坡是否稳定一直是困扰水库安全运行的主要问题之一。根据西静河水库库区地质勘察资料和坝址区水文地质条件,对西静河水库库岸滑坡带进行了详析,在此基础上采用不平衡推力法对左库岸失稳边坡进行了稳定性分析,结果表明:西静河水库左岸边坡趋于稳定,但在持续暴雨或加载地震力的情况下边坡中段有滑坡风险,该结论得到了现场勘察情况的支持。更多还原

【Abstract】 Xijinghe Reservoir is located in an active earthquake zone,and the slopes near the dam are steep.Hence,the stability of the slopes has always been one of the problems affecting the reservoir security.Based on the geological survey data and hydrogeological conditions in the Xijinghe Reservoir,the landslide zone in the embankment of the Xijinghe Reservoir was analyzed in detail.The stability analysis of the slopes on the left bank was performed using the imbalance thrust force method.The results showed that the slopes on the left bank of the Xijinghe Reservoir is stable under the natural conditions;however,landslides may occur in the middle part of the slopes under the sustained heavy rains or earthquakes conditions.The conclusions were consistent with the in-situ survey results.更多还原