原地浸出的矿岩结构演化机理研究  

Study on the Mechanism of Evolution of Ore Structure in In-situ Leaching

作　　者：潘伟[1] 吴爱祥[1] 马俊伟[1] 

机构地区：[1]中南大学资源与安全工程学院,长沙410083

出　　处：《矿业研究与开发》2005年第1期14-16,27,共4页Mining Research and Development

基　　金：国家杰出青年基金项目(50325415)

摘　　要：原地浸出中矿岩结构演化是一个受多因素耦合作用的复杂动力学过程。本文对原地浸出作业中矿岩裂纹扩展与破坏机理进行了较详细的理论分析,发现了渗流水楔作用是矿岩裂纹产生、扩展及贯通的重要原因。在理论分析的基础上,建立了原地浸出矿岩结构演化的数学模型,对于缩短生产周期、提高浸出速率和提高经济效益具有一定的意义。The evolution of ore structure in in-situ leaching is a complex kinetic process, which is correlatively affected by many factors. In this paper, a theoretical analysis on mechanism of crack propagation and failure of the ore in in-situ leaching was carried out. It is concluded that the initiation, propagation and link up of the cracks are caused mainly by the action of infiltration water wedge. On the basis of theoretical analysis, this paper establishes the mathematic model of evolution of ore structure in in-situ leaching, which is of some significance to shorten production periods and enhance leaching speed and economic benefits.

关 键 词：原地浸出 矿岩 结构演化 水楔作用 裂纹扩展 破坏方式 数学模型 

分 类 号：TD853.37[矿业工程—金属矿开采] TD231[矿业工程—矿山开采]