高峰矿深地中部矿段采场结构参数仿真优化

Simulation optimization of stope structure parameters in deep middle ore section in Gaofeng mine

高峰矿深地资源的开发利用关键是合理确定矿山开采的结构参数。运用数值分析方法,建立5种采场结构参数的深地中部矿段的三维力学模型,获得了不同参数下的中部矿段开采的应力、位移和塑性区演化规律。研究结果表明:①优化的采场结构参数长度为20m,宽度为矿体厚度;②在阶段内需要分段或分层开采,减少开采扰动的影响,提高采场安全稳定性;③加强上下盘的超前支护,保护采场出矿安全。

The key of development and utilization of deep resources in Gaofeng mine was to determine reasonably the structural parameters of mining. Using the numerical analysis method, the 3D mechanical model of the deep middle ore section of the five stope structures was established, and the stress, displacement and plastic zone evolution law of the middle ore section mining under different parameters were obtained. The results showed that the optimized length of the stope structure parameters was 20m and the width was the thickness of the orebody; and sublevel or slice mining was needed to reduce the influence of mining disturbance and improve the safety and stability of the stope in the stage; then the advance support of the hanging wall and footwall was strengthened to protect the ore drawing safety of the stope.