白云鄂博西矿尾矿库坝体稳定性分析

膏体堆存是一种新型尾矿处置技术。位于高寒地区的包钢西矿尾矿库也采用了膏体堆放技术进行尾矿处置。坝体的稳定性对该尾矿库具有至关重要的影响。本文通过Geo-Studio数值模拟软件，分析了白云鄂博西矿尾矿库南坝在不同蓄水深度下坝体的渗流情况和稳定性系数； 同时，利用该数值模拟软件分析了不同膏体堆存高度对北坝坝体稳定性的影响。结果表明：南坝的稳定性随着蓄水深度的增加而降低。为防止南坝发生溃坝事故，建议蓄水深度不超过8m。否则，需要对南坝采取适当的加固措施。北坝则不论是在当前堆积深度8m还是在最终堆积深度23m的情况下一直处于稳定状态。

STABILITY ANALYSIS OF THE DAM OF BAOGANG WEST MINE TAILINGS POND

Paste stockpiling is a new method which was used for tailings disposal in tailing pond. It is also applied in the tailing pond of BaoGang West Mine. The stability of tailings dam is the key factor that making sure the safety of paste stockpiling. By using Geo-Studio software and based on the tailing pond of BaoGang West Mine the impact of different depth of water on the south dam stability were analyzed. The stability of north dam, in different height of tailings, were studied. In order to prevent possible failure of south dam, the depth of water is suggested no more than 8m, otherwise measures should be taken to reinforce the south dam. The north dam is always safety no matter on the condition of 8m accumulation height or 23m accumulation height.