摘要
针对新城金矿Ⅴ#矿体-580 m中段顶柱回采存在安全隐患的问题,提出垂直于矿体走向布置采场的上向进路充填采矿方案。介绍了开采方案的盘区及采场划分、采准工程布置、回采顺序、回采工艺和巷道掘进及顶板管理等。为了验证开采方案的正确性,运用振弦式锚杆测力计和钢尺收敛计对采场和巷道的稳定性进行了监测。结果表明所采用的采矿方法是合理的,为顶柱的回采提供了理论依据,具有重要的实践意义。
Considering the safety problems for recovering crown pillar at-580 m level of Ⅴ^# ore body in Xincheng gold mine,an upward drift mining scheme with backfilling is proposed.Its stope is perpendicular to the strike of the ore body.Division of panel and stope,arrangement of preliminary mining projects,stoping sequence,extraction process,roadway excavation and roof control of the mining scheme were introduced.In order to verify the reasonableness of the proposed mining scheme,stability of roadway and stope was monitored by using rock bolt extensometer and convergence gauge.The results show that the mining method is reasonable.This study may provide theoretical basis and is of important practical significance for crown pillar recovery.
出处
《金属矿山》
CAS
北大核心
2012年第12期1-4,13,共5页
Metal Mine
基金
国家自然科学基金项目(编号:50934006
51111130206)
中央高校基本科研业务费项目(编号:N110201001
N100701001
N0901001)
科技部中国-南非联合研究计划项目(编号:CS06-L01)
霍英东教育基金项目(编号:122023)
辽宁省教育厅科学技术研究项目(编号:LT2010033)
关键词
顶柱回采
采矿方法
充填采矿法
地压监测
Crown pillar recovery
Mining method
Back filling method
Ground pressure monitoring
