覆盖岩层下矿岩流动过程数值模拟  

Numerical Simulation of Ore and Rock Flow Under Overburden

作　　者：徐国元[1] 赵建平[2] 黄仁东[2] 李夕兵[2] 

机构地区：[1]中南大学资源与安全工程学院 [2]中南大学

出　　处：《金属矿山》2004年第12期1-4,8,共5页Metal Mine

基　　金："十五"国家科技攻关项目 (编号 :2 0 0 1BA60 9A -0 9-0 4)

摘　　要：利用离散元中刚性块体模型 ,模拟了多种放矿制度下 ,覆盖岩层与矿石的相互作用及移动过程 ,反映了矿岩的流动特点和接触线变化过程。研究表明 ,用离散元方法模拟非均匀矿岩散体运动过程是适合的 ,能够用于采场结构参数优化、出矿方式选择、放矿管理和对矿石的损失与贫化指标进行预测。The DEM (discrete element method) model of rigidity block was used to simulate the interaction and movement between the overburden and the ore in several ore drawing systems, which could reflect the flow characteristics and the change in contact line between the ore and the overburden . The study showed that it is appropriate to use DEM to simulate the movement process of nonuniform loose ore-rock. It can be used in the optimization of stope structural parameters, the selection of ore drawing mode, ore drawing management and the forcasting of ore loss and dilution indexes.

关 键 词：非均匀矿岩散体 放矿 岩层 采场结构参数 出矿 矿石 贫化 方式选择 流动特点 制度 

分 类 号：TD80-9[矿业工程—矿山开采] TD235