摘要
某铜矿深部矿体品位较高,采场顶板破碎,目前采用分层充填采矿法开采。为保证深部矿体的安全、高效开采,结合该铜矿开采技术条件,提出采场结构参数优化方案,并对-580m水平采用分层充填法的采场结构参数进行分析验证。运用ANSYS软件建立三维模型,并导入有限差分软件FLAC^(3D)中模拟采场的开采,对不同开采方案下采场的应力、位移及塑性区进行对比分析。模拟结果表明:矿房宽度为6m,点柱尺寸为4.0m×4.0m,矿柱间距为5.0m的方案为最优方案。
The deep orebody with a high grade in a copper minehas a high grade and the roof of the stope is developed with thefractured rock. A cut and fill stoping method was adopted formining at present. A scheme for optimization of structural param-eters for the stope was put forward combined with the technicalconditions of the copper mine to ensure the safety and efficientmining in the deep orebody . The stope parameters at level --580m for orebody mined by the cut and fill stoping method wereverified by analysis. A three-dimensional model was establishedby ANSYS software and a comparative analysis was made of thestress, displacement and the plastic zone of the stope in differentmining schemes by introducing the finite difference softwareFLAC3D to simulate mining in the stope. The results showed thatthe optimal scheme is： width of the chamber being 6 meters, sizeof the post-pillar 4.0 m X 4.0 m and distance between the post-pillars 5 meters,
出处
《化工矿物与加工》
北大核心
2016年第12期47-51,共5页
Industrial Minerals & Processing
关键词
分层充填法
深部采场
结构参数优化
有限差分法
数值模拟
cut and fill stoping method
optimization
structuralparameters of stope
finite difference method
numerical simula-tion
