摘要
新桥硫铁矿采用两步回采的分段空场嗣后充填法，回采其呈框架式布置的矿柱、矿房，由于矿房跨度大大超过矿柱宽度，且矿柱充填质量较差，使第二步矿房回采难度加大．在矿房回采试验中，作者根据数值分析结果，采用了分区爆破、最后暴露充填体的开采技术，使大跨度矿房回采获得了成功，取得了显著的经济效益，也为类似条件矿山的开采提供了经验．
inqiao Pyrite Mine adopts twostep sublevel open stoping with delayed filling to mine its pillar and stope arranged alternately.Large span length and poor surrounding fill quality made the mining of the stope more difficult.In the mining experiment of the stope,the mining technology about split extraction and delayed exposure of artificial pillar was used,which not only resulted in the successful mining of the stope and better economic benefit,but also can be helpful for other related mines.
出处
《中南工业大学学报》
CSCD
北大核心
1998年第1期14-17,共4页
Journal of Central South University of Technology(Natural Science)
基金
中国化学工业部科研基金
