关键词: 尾矿库, 渗流稳定性, 浸润线

Abstract: To ensure the safe operation of tailing reservoir and to prevent and control its disaster accident due to seepage, FLAC3D is used to carry out the seepage numerical simulation calculation of the tailing reservoir. The result shows that there is a large speed vector at the gully, which can wrap the flowing sands and therefore, intensify the local damage. It is known from the figure that the dynamic pressure is the largest where the water head, gradient and hydraulic slope are the maximum, and the corresponding part is most likely to be destroyed by seepage, leading to an accident of the reservoir. The chosen section A-A's dam slope angle is evidently larger than the dam stability angle. FLAC3D software can be used to do a better simulation calculation of tailing reservoir's seepage, which can be of certain reference and guidance importance to the safe operation of tailing reservoir.

Key words: Tailing reservoir, Seepage stability, Saturation line