某铁矿无底柱分段崩落法分段高度的确定
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摘要
无底柱分段崩落法的分段高度直接影响矿山采切工程量及矿石损失贫化率,合理的分段高度能为矿山企业带来较大的经济效益。通过分析凿岩设备和矿体稳固性对分段高度的影响,得出限制本矿山分段高度的主要因素是矿体稳固性。参考国内相类似的矿山,并分析矿体稳固性对采场地压和凿岩爆破的影响,确定分段高度为12m。生产实践表明,12m的分段高度,钻孔效率高,成孔率高,爆破效果好,矿石损失贫化在合理的范围内。
Sectional height of non-pillar sublevel caving method directly influences the quantity of mining cutting and the loss and dilution ratios,and reasonable sectional height can bring great economic benefits to mining enterprises.By analyzing the influence of rock drilling equipment and ore body stability on sectional height,it was concluded that the main factor restricting the sectional height of this mine was the ore body stability.Referring to similar mines in China,effects of ore body stability on stope ground pressure and rock blasting were analyzed,and the sectional height was determined to be 12 m.The production practice indicated that the sectional height was adopted to be 12 m,with a high drilling efficiency,high porosity and goodblasting effect,and the ore loss and dilution ratios were within reasonable limits.
Sectional height of non-pillar sublevel caving method directly influences the quantity of mining cutting and the loss and dilution ratios,and reasonable sectional height can bring great economic benefits to mining enterprises.By analyzing the influence of rock drilling equipment and ore body stability on sectional height,it was concluded that the main factor restricting the sectional height of this mine was the ore body stability.Referring to similar mines in China,effects of ore body stability on stope ground pressure and rock blasting were analyzed,and the sectional height was determined to be 12 m.The production practice indicated that the sectional height was adopted to be 12 m,with a high drilling efficiency,high porosity and goodblasting effect,and the ore loss and dilution ratios were within reasonable limits.
引文
[1]王友新,周宗红,杨安国,等.无底柱分段崩落采矿法采场结构参数研究[J].黄金,2015,36(6):29-32.
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[8]邱海涛,秦国保,吴荣高,等.梅山铁矿大采场结构参数的工业试验方案[J].采矿技术,2015,15(2):20-21,73.
[9]范有才,徐万寿,陈双云.高深溜井在大红山无底柱分段崩落采矿法中的应用与改进[J].采矿技术,2011,11(6):6-8.
[10]丁明福,周王贞.无底柱分段崩落法在羊耳山铁铜矿的应用[J].有色金属(矿山部分),2015,67(5):14-16,26.
[11]伍瑶前.无底柱分段崩落采矿法回采设计方法[J].矿业工程,2009,7(6):62-64.
[12]伍绍辉.中深孔凿岩设备在我国有色矿山的应用[J].有色矿山,2000(4):33-35.
[13]周士霖,李新成,吴鹏.地下金属矿山阶段空场凿岩方式的探讨[J].矿业研究与开发,2017,37(5):20-23.
[14]赵宏强,朱建新,林宏武,等.我国矿山凿岩设备现状与发展方向[J].金属矿山,2009(增刊1):482-486.
[2]冯浩楠,舒太镜,郭建来.某铁矿无底柱分段崩落法最优结构参数研究[J].有色金属(矿山部分),2015,67(4):24-27.
[3]李智慧,明建,毛市龙,等.无底柱分段崩落法眉线破坏条件下贫损规律研究[J].有色金属(矿山部分),2018,70(2):5-8.
[4]王仁军.大结构参数无底柱分段崩落法在灯塔铁矿的应用[J].现代矿业,2013,29(3):80-82.
[5]孙毅民,郭海龙.无底柱分段崩落法与大型无轨设备的应用实践[J].采矿技术,2011,11(5):7-9,43.
[6]刘效良,张维滨.中深孔无底柱分段崩落采矿法在云南镇沅金矿的应用研究[J].现代矿业,2010,26(6):13-17.
[7]陈五九.无底柱分段崩落法在和睦山铁矿的应用与优化[J].现代矿业,2013,29(5):8-10,35.
[8]邱海涛,秦国保,吴荣高,等.梅山铁矿大采场结构参数的工业试验方案[J].采矿技术,2015,15(2):20-21,73.
[9]范有才,徐万寿,陈双云.高深溜井在大红山无底柱分段崩落采矿法中的应用与改进[J].采矿技术,2011,11(6):6-8.
[10]丁明福,周王贞.无底柱分段崩落法在羊耳山铁铜矿的应用[J].有色金属(矿山部分),2015,67(5):14-16,26.
[11]伍瑶前.无底柱分段崩落采矿法回采设计方法[J].矿业工程,2009,7(6):62-64.
[12]伍绍辉.中深孔凿岩设备在我国有色矿山的应用[J].有色矿山,2000(4):33-35.
[13]周士霖,李新成,吴鹏.地下金属矿山阶段空场凿岩方式的探讨[J].矿业研究与开发,2017,37(5):20-23.
[14]赵宏强,朱建新,林宏武,等.我国矿山凿岩设备现状与发展方向[J].金属矿山,2009(增刊1):482-486.