中深孔光爆技术在硬岩巷道中的应用研究
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摘要
目前,岩巷掘进的主要作业方式为炮掘,炮掘的循环进尺决定着掘进速度,因此,中深孔爆破的应用在岩巷掘进中日益广泛。中深孔爆破技术的实施受岩石条件的限制,在硬岩巷道中,炸药消耗量大、容易出现"抽炮"现象、炮眼利用率低,针对硬岩巷道中深孔爆破现场问题,对硬岩巷道中深孔爆破技术进行研究,通过改变掏槽方式、爆破参数、装药结构来改善爆破效果。本文以陈四楼煤矿为例,通过现场试验,对中深孔爆破技术在硬岩中的应用展开了研究。
Currently, rock heading for the main practices Excavating, Excavating circulating footage determines the driving speed, therefore, the application of deep hole blasting in rock drifting increasingly widespread. Implementation of deep rock blasting technique is limited by the conditions in the hard rock tunnel, explosives consumed in large quantities, prone to "pump gun" phenomenon, borehole utilization rate for hole blasting hard rock scene in question, on the hard rock tunnel hole blasting technology research, by changing the way undercutting, blasting parameters, charging structure to improve the blasting effect. In this paper, coal Chensilou example, through field tests of the technology in deep hole blasting hard rock launched a study.
Currently, rock heading for the main practices Excavating, Excavating circulating footage determines the driving speed, therefore, the application of deep hole blasting in rock drifting increasingly widespread. Implementation of deep rock blasting technique is limited by the conditions in the hard rock tunnel, explosives consumed in large quantities, prone to "pump gun" phenomenon, borehole utilization rate for hole blasting hard rock scene in question, on the hard rock tunnel hole blasting technology research, by changing the way undercutting, blasting parameters, charging structure to improve the blasting effect. In this paper, coal Chensilou example, through field tests of the technology in deep hole blasting hard rock launched a study.
引文
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[2]曹树刚,李勇,刘延保,等.深孔控制预裂爆破对煤体微观结构的影响[J].岩石力学与工程学报,2009,28(4):673-678.
[3]宗琦.岩巷掘进中深孔爆破中的掏槽和光爆问题[J].淮南工业学院学报(自然科学),2001,21(2):18-21.
[4]景海河,何满潮,孙晓明,等.软岩巷道支护荷载的确定方法[J].中国矿业大学学报,2002,31(5):376-378.
[5]何满潮,谢和平,彭苏萍,等.深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2803-2813.
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[7]袁子清,杨小聪,唐礼忠.硬岩金属矿山开采活动与矿山地震活动的关系研究[J].中国安全科学学报,2008(4):16-19.
[8]孙晓明,何满潮.深部开采软岩巷道耦合支护数值模拟研究[J].中国矿业大学学报,2005,34(2):166-169.
[2]曹树刚,李勇,刘延保,等.深孔控制预裂爆破对煤体微观结构的影响[J].岩石力学与工程学报,2009,28(4):673-678.
[3]宗琦.岩巷掘进中深孔爆破中的掏槽和光爆问题[J].淮南工业学院学报(自然科学),2001,21(2):18-21.
[4]景海河,何满潮,孙晓明,等.软岩巷道支护荷载的确定方法[J].中国矿业大学学报,2002,31(5):376-378.
[5]何满潮,谢和平,彭苏萍,等.深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2803-2813.
[6]高尔新,杨仁树.爆破工程[M].徐州:中国矿业大学出版社,1999.
[7]袁子清,杨小聪,唐礼忠.硬岩金属矿山开采活动与矿山地震活动的关系研究[J].中国安全科学学报,2008(4):16-19.
[8]孙晓明,何满潮.深部开采软岩巷道耦合支护数值模拟研究[J].中国矿业大学学报,2005,34(2):166-169.
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