缓倾斜矿体采场结构参数优化数值模拟

摘要

The orebody of Ningdu pyrite is gently inclined, and its stope structure parameters can hardly be determined due to the complicated geological conditions. In order to solve the problem, 130 m level stope in Ningdu Pyrite Mine was studied based on theoretical calculation and available production conditions. The op-timum scheme was determined by designing 9 mining schemes which take the span of stope, the top pillar thickness, the point pillar spacing and their size as influencing factors, and then comprehensively comparing their results through numerical stimulation of ANSYS and FLAC3D.%宁都硫铁矿属缓倾斜矿体，由于所在区域地质条件复杂，使得采场结构参数难以确定。为解决该问题，选择130 m中段为研究对象，结合理论计算和实际生产条件，以矿柱间距、矿柱尺寸、矿房跨度、顶板厚度为影响因素，设计9组开采方案，利用ANSYS建立模型，导入FLAC3D进行数值计算，综合比较各方案所得结果，并确定最优采场结构参数。