Three-dimensional Numerical Simulation Of Random Media Caving Ore

Caving mining due to its high efficiency and low cost, it can meet different geological conditions of the advantages of the mining method,so it is widely used in both at home and abroad. Because caving mining ores are emited under the cover of waste rock .overburden rock is easily doped with mineral ore emitting out, causing ore loss and dilution. In mining, ore loss and dilution effect is an important factor of mining method benefit for the mining of technical and economic indexes which have significant influence on lower ore loss and dilution mining .It is an important and urgent work. So, choosing appropriate computer language, simulating ore-rock medium particle flow simulation program, we can make its in mining process of practical play guidance , help choosing reasonable structure parameters and ore, thereby reducing ore loss and dilution, to improve the economic benefit of mine has important significance.This topic firstly introduces the development of existing comparatively mature caving method, choosing theory of random medium ore mine as the theoretical basis. From the current situation of the computer simulation, It compares and analyses the advantage and different simulation methods and the existing problems of computer numerical simulation. Secondly it researches and analysises of its caving ore-rock moving rule equation. In the final it analysis and research of the brief ore loss and dilution,and using the D.Jolley alternates model,with RenFengYu improved random medium probability density equation, using the improved random medium probability density equation, the study of early in the bottom of parameters,αandβ. First,VB6.0 language as the platform,it use mathematical model of random medium theory of caving writing mine random medium simulation program. Second, a simulation program is designed for use in different ore bottom, into space and on mine ore discharge port. Third, by analysis and simulation results, in applications it has achieved good results, the results of this study can be for the mining of parameters in the choice to provide certain reference function.