摘要
充填法开采过程中充填体与岩体的耦合力学作用是一个能量耗散过程。分析了岩石破坏比能,采用有限元方法研究了矿床开采过程中岩体能量的释放规律。研究表明,随着开挖体积的增加,岩体能量释放率逐渐增大,且随开挖体积呈二次曲线增长,采场充填对于减小岩体能量释放率具有显著的效果。
The coupling mechanical action between filling body and rock mass during filling mining is a process of energy dissipation.The destructive ratio of energy in rock is analyzed,and the laws of energy release in rock mass are researched with the finite element method.The researching results show that energy release in rock mass increases with the bulk excavating,which their relationships exhibit in a way of secondary curve.And there are remarkable effects in decreasing the ratio of energy release when stope is filled.
出处
《金属矿山》
CAS
北大核心
2010年第5期13-15,33,共4页
Metal Mine
基金
"十一五"国家科技支撑计划项目(编号:2007BAB08B01)
关键词
充填采矿
破坏比能
能量释放
Filling mining
Destructive ratio of energy
Energy release
