【摘要】 以重庆金佛山沥青混凝土心墙堆石坝工程为例,同时考虑非线性及线性强度指标,采用极限平衡法分析了大坝竣工期、蓄水期、水位骤降期及地震作用下的坝坡稳定性。结果表明,该堆石坝在7种计算方法下坝坡安全系数均满足规范要求,采用非线性强度指标时危险滑弧深度贯通,计算结果合理。更多还原

【Abstract】 Taking Jinfo Mountain asphalt concrete core rockfill dam for an example,the limit equilibrium method is used to analyze the stability of the dam boundary in completion period,storage water period,water level sudden drop period and earthquake situation by considering non-linear and linear strength index.The results show that the safety factors of the dam slope obtained by 7 kinds of methods are satisfied with the specification requirements;the dangerous slide arc will deeply penetrated by using nonlinear strength index,and the evaluation result is more reasonable.更多还原