基于Voronoi图和时间效应的矿柱失稳预测

针对香炉山大规模地下采空区,借助Voronoi图确定分摊面积来模拟矿柱荷载分布、矿柱破坏、荷载转移以及荷载重新分布的过程,从而确定现阶段的不稳定矿柱,并在此基础上考虑时间效应。用该方法可得出,目前香炉山钨矿不稳定矿柱的失稳不会造成大规模的坍塌,考虑时间效应,则20年时间效应内二四坑口的南区有发生连续坍塌的可能。为防止矿柱发生大范围坍塌,结合香炉山钨矿的实际情况,最终确定胶结充填法为该矿山当前处理空区的最适宜方法。

Prediction of pillar instability based on Voronoi chart and time effect

Territory area division was determined by the use of Voronoi diagram to simulate the load distribution, pillar collapse, load transfer and the process of re-distribution, so that the current unstable pillar for large-scale mined-out area of Censer mountain could be determined. And the time effect was considered on this basis. It showed that the collapse of unstable pillars will not lead to a large-scale collapse at present, nevertheless , there is the possibility of continuous collapse on no. 2 and no. 4 pithead southern district of Censer mountain Tungsten Mine in the next 20 years. In order to prevent the large-scale collapse of pillar , the cementation filling method was de- termined as the most suitable method to treat the mined-out area for the mine at present combining with the actual situation of Censer mountain Tungsten Mine.