紫金山金铜矿排土场不同物料堆排方式稳定性对比分析

Comparative Analysis on Stability of Different Material Stacking Methods in Zijinshan Gold and Copper Mine Dump

为提升紫金山金铜矿北口排土场的稳定性,对物料的合理堆排方式进行探究。通过Morgenstern-price法研究了2种物料不同混合堆排方式下,边坡在自然条件以及降雨条件下的稳定性变化情况。结果表明:降雨会减少排土场边坡的稳定性;2种物料水平方向上间隔堆排的方式能有效提高边坡的稳定性,随着保护层的增厚,边坡安全系数逐渐提高;水平方向上间隔堆排的前提下,竖直方向上也间隔错开排放能进一步提高边坡稳定性,同时增大废土的堆排量。

In order to improve the stability of the dump in the north of Zijinshan Gold and Copper Mine,the reasonable stacking method of materials is explored.The Morgenstern-price method was used to study the stability changes of slopes under natural conditions and rainfall conditions under different mixed stacking modes of two materials.The results show that rainfall will reduce the stability of the dump slope.The interval stacking in the horizontal direction of the two materials can effectively improve the stability of the slope.With the thickening of the protective layer,the safety factor of the slope gradually increases.Under the premise of interval stacking in the horizontal direction,the staggered emission in the vertical direction can further improve the slope stability and increase the stacking amount of waste soil.