玉水硫铜矿-240m中段东采场0′#、0″#和1#矿柱加固后稳定性论证

Stability demonstration of 0'#、0"#and 1#pillars after reinforcement in the-240m level's East stope in Yushui sulfur-copper mine

在地下矿山开采中,矿柱稳定性主要取决于矿柱所承受的上覆岩层荷载和自身强度[1-4]。本文利用面积承载理论和安全系数法分别对矿柱上覆岩层荷载和矿柱自身强度进行分析计算,论证不稳定矿柱通过采取人工加固后的稳定性情况。

In underground mining,the stability of ore pillar mainly depends on the load of overlying strata and the strength of ore pillar.In this paper,the area bearing theory and the Factor of safety method are used to analyze and calculate the load of the overlying strata and the strength of the pillar respectively,and to demonstrate the stability of the unstable pillar after artificial reinforcement.