放矿力学

本文介绍了松散矿岩从矿块放出的力学规律及其应用，包括放矿动力学、放矿静力学和放矿运动学．文中阐明了用中间移动角代替当前应用较普遍的椭球体以“偏心率”作计算参数的理由和意义；介绍了选择采矿方法和最优结构参数的电算数值模拟法和新的矿块底部结构．

Mechanics of Ore Drawing

The paper deals with the mechanical principles which involve dynamics, statics and kinetics of loosened rock and ore flown through discharging openings in stops and their applications in underground mining. A new philosophy is conceived that moving middle angle should be used as computation parameter instead of eccentricity in currently accepted ore draw ellipsoid. On the basis of the philosophy, a computer simulation method is established to select mining method and its optimun parameters, and some new types of discharging structures in stopes are given,the research results have found wide applications in underground mining.