用当量暴露面积法评价矿山采场的稳定性

Evaluating Stability of Mine Stope by Equivalent Exposed Area Method

本文提出了一种评价采场稳定性的新方法——当量暴露面积法。它以板裂结构的岩体力学模型为基础,推导出了采场当量暴露面积的计算公式。用当量暴露面积法,对上宫金矿干式充填法采场的稳定性进行了分析评判,结果与实际情况基本吻合。

This paper raised a new stability evaluation method of the mine stope,i. e. an equivalent exposed area method. On the basis of rock mass mechanics model of cracking plate structure, it derived the calculation equation for the equivalent exposed area of mine stope. According to the analysis and judgment for the mine stope stability used dry filled stopes method in Shanggong Gold Mine by the equivalent exposed area method, the gained results were consistent with the practical situation basically.