数值分析在确定竖井保安矿柱与回采方案中的应用

USING THE DISPLACEMENT DISCONTINUITY METHOD TO DETERMINE THE SAFETY PILLAR SIZE OF A SHAFT AND THE STOPE LAYOUT

本文首先简述了矿层单元与竖井单元的理论结果,讨论了矿山开采岩体分级在选定力学模型中的作用。结合某矿山竖井保安矿柱重新圈定的实际问题,运用矿层单元与竖井单元进行了板状矿体开采对竖井影响的三维分析,充分发挥电子计算机与数值方法的长处,经过对多种可能回采方案的试算与比较,得到了矿山生产设计中急需的参考数据。

The seam elements and shaft elements have been adopted to analyze the influence of mining on distributions of the stresses and displacements around a shaft of a copper and zinc mine. The size of a safety pillar has been determined using the mining rock mass classification and the displacement discontinuity method. Different layout of the stopes can be compared because of use of the numerical method for a threedimensional analysis.