【摘要】 为了更准确、快速地进行土石坝稳定性分析,基于瑞典圆弧法的基本原理,分别采用等步长法和黄金分割法搜索得到多个滑裂面的安全系数。通过安全系数评价法,结合所求最小安全系数对土石坝进行稳定性分析,分析结果表明两种算法都能判断出工程实例中的土石坝存在不稳定滑裂面。对两种算法所求的结果进行比较,得到黄金分割法比等步长法的计算精度更高、速度更快,能为土石坝稳定性分析提供更有效的方法。更多还原

【Abstract】 In order to making stability analysis of earth-rock dam more accurately and quickly,based on the basic principles of the Swedish arc,equal step method and golden section method has been applied to get plenty safety factors of slip surfaces.Through the safety factor evaluation method,combined with the minimum safety factor,the stability of earth-rock dam has been analyzed.The results show that both algorithms can judge that there exist unstable slip crack surface in earth-rock dam of the engineering example.Comparison of the results of two algorithms,it shows that the computational accuracy of the golden section method is higher and its computation speed is faster than equal step method,which can provide a more effective way for stability analysis of earth-rock dam.更多还原