基于JC法尾矿坝稳定性可靠度研究

论述了可靠度理论在尾矿坝稳定性评价中可有效弥补定值法(安全系数法)存在的不足。文中选用JC法作为可靠度分析方法,结合实例对尾矿坝进行稳定性分析,分别求出了尾矿坝在正常和洪水工况下运行时的可靠度指标。并通过与定值法(安全系数法)比较,发现可靠度指标对坝体材料物理力学参数变异性的敏感度高于安全系数,因而得出可靠度方法可以更加全面、客观的反映出尾矿坝稳定性的真实状态。

Reach on reliability of Tailing dam stability based on JC methed

The reliability theory is introduced to tailings dam stability evaluation,which can solve defect of the Fixing method（the safety factor method）.Selected JC method as a reliability analysis methods to analyzed the stability of tailing dam combined with example,and obtained reliability indexes about the tailings dam running in the normal and flood conditions.Compared with the Fixing method（the safety factor method）,it is found that the reliability index to variability of dam material physico-mechanical parameters indexes is more sensitive than the safety factor,so reliability method can reflect the true state of tailings dam stability with more comprehensive and objective.