摘要
针对地下矿山开采残留的矿柱,结合其下部采矿方法的改变,在工程地质调查、岩体质量评价及利用数值分析方法对空区等进行稳定性评价的基础上,采用崩落法的开采方式及深孔凿岩的方式形成覆盖岩层,有效回收了矿柱,并使矿山采矿方法的变更实现平稳、安全地过渡,为类似矿山空区处理及矿柱回收提供了一种有效的方法。
According to the conditions of the residual pillar in the underground mining,combined with the mining method,and based on the engineering geologic investigation,rock mass evaluation,and goaf stability evaluation by using numerical analysis method：caving method and deep drilling to produce cover were applied,by which the pillar was recovered effectively,and it made the conversion of mining method safe and smooth.It provided a effective way for goaf treatment and recovering pillar in similar mines.
出处
《中国矿山工程》
2014年第1期5-9,共5页
China Mine Engineering
关键词
空区治理
矿柱回收
深孔爆破
崩落法
goaf treatment
pillar recovery
deep-hole blasting
caving method
