Abstract: In order to analyze the application effects of sinking dam method by building dike,the basic concepts of the method is analyzed,taking a mine as the study example,the SRM and SAM modules of finite element analysis software MIDAS is adopted to analyze the influence of Continuous discharge of past tailings to the tailings dam stability.The results show that with the discharging of past tailings,the stability of tailings dam is decreased,but the decreasing trend is not significant,which indicated that the influence of continuous discharge of paste tailings to the stability of tailings dam is small.

Key words: Tailings discharge, Sinking dam method by building dike, Paste tailings, Stability of dam dike