无煤柱自成巷聚能切缝技术研究
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摘要
聚能切缝技术能够有效地切断顶板的应力传递,为无煤柱切顶成巷提供保障。以宝山煤矿6302工作面为工程背景,通过现场实验和理论分析,对聚能切缝参数进行研究和优化。试验结果表明,在3+2的装药形式下,成缝率可达90%以上,成缝效果最明显,且在工作面回采过程中顶板能够及时垮落,现场应用效果良好。
The technique of energy-gathered roof cutting can effectively cut off the stress transfer of the roof, and guaranteed the success of roof cutting in no pillar mining. In the engineering background of 6302 mining face in Baoshan coal mine,the energy-gathered cutting parameters were studied and optimized by field experiment and theoretical analysis. The results show that 3+2 explosive filling mode worked well,the crack rate can reach more than 90%,and the roof rock masses could fall down in time,field application of good results.
The technique of energy-gathered roof cutting can effectively cut off the stress transfer of the roof, and guaranteed the success of roof cutting in no pillar mining. In the engineering background of 6302 mining face in Baoshan coal mine,the energy-gathered cutting parameters were studied and optimized by field experiment and theoretical analysis. The results show that 3+2 explosive filling mode worked well,the crack rate can reach more than 90%,and the roof rock masses could fall down in time,field application of good results.
引文
[1]郭志飚,王将,曹天培,等.薄煤层切顶卸压自动成巷关键参数研究[J].中国矿业大学学报,2016,45(5):879-885.
[2]杨晓杰,侯定贵,康欢欢,等.切顶卸压自动成巷的离散元数值模拟[J].金属矿山,2016(7):94-98.
[3]张国锋,何满潮,俞学平,等.白皎矿保护层沿空切顶成巷无煤柱开采技术研究[J].采矿与安全工程学报,2011,28(4):511-516.
[4]孙晓明,刘鑫,梁广峰,等.薄煤层切顶卸压沿空留巷关键参数研究[J].岩石力学与工程学报,2014,33(7):1 449-1 456.
[5]汤建泉,宋文军,宋立兵,等.切顶卸压沿空留巷切缝设计与研究[J].煤矿安全,2016,47(9):53-55,59.
[6]孙晓明,韩强,王炯,等.中兴矿1200工作面沿空留巷技术应用研究[J].煤炭技术,2017,36(2):28-30.
[7]汤建泉,刘吉存,宋文军,等.切顶卸压沿空留巷预裂切缝技术指标研究[J].煤炭技术,2017,36(6):174-176.
[8]郭鹏飞,张国锋,陶志刚.坚硬软弱复合顶板切顶卸压沿空留巷爆破技术[J].煤炭科学技术,2016,44(10):120-124.
[9]何满潮,高玉兵,杨军,等.无煤柱自成巷聚能切缝技术及其对围岩应力演化的影响研究[J].岩石力学与工程学报,2017,36(6):1 314-1 325.
[10]韩强,孙晓明,王炯,等.中兴矿切顶爆破参数研究[J].煤炭技术,2017,36(3):56-58.
[11]陈上元,郭志飚,马资敏,等.城郊矿切顶聚能爆破参数优化研究[J].煤炭技术,2016,35(8):17-19.
[12]何满潮,曹伍富,单仁亮,等.双向聚能拉伸爆破新技术[J].岩石力学与工程学报,2003,22(12):2 047-2 051.
[2]杨晓杰,侯定贵,康欢欢,等.切顶卸压自动成巷的离散元数值模拟[J].金属矿山,2016(7):94-98.
[3]张国锋,何满潮,俞学平,等.白皎矿保护层沿空切顶成巷无煤柱开采技术研究[J].采矿与安全工程学报,2011,28(4):511-516.
[4]孙晓明,刘鑫,梁广峰,等.薄煤层切顶卸压沿空留巷关键参数研究[J].岩石力学与工程学报,2014,33(7):1 449-1 456.
[5]汤建泉,宋文军,宋立兵,等.切顶卸压沿空留巷切缝设计与研究[J].煤矿安全,2016,47(9):53-55,59.
[6]孙晓明,韩强,王炯,等.中兴矿1200工作面沿空留巷技术应用研究[J].煤炭技术,2017,36(2):28-30.
[7]汤建泉,刘吉存,宋文军,等.切顶卸压沿空留巷预裂切缝技术指标研究[J].煤炭技术,2017,36(6):174-176.
[8]郭鹏飞,张国锋,陶志刚.坚硬软弱复合顶板切顶卸压沿空留巷爆破技术[J].煤炭科学技术,2016,44(10):120-124.
[9]何满潮,高玉兵,杨军,等.无煤柱自成巷聚能切缝技术及其对围岩应力演化的影响研究[J].岩石力学与工程学报,2017,36(6):1 314-1 325.
[10]韩强,孙晓明,王炯,等.中兴矿切顶爆破参数研究[J].煤炭技术,2017,36(3):56-58.
[11]陈上元,郭志飚,马资敏,等.城郊矿切顶聚能爆破参数优化研究[J].煤炭技术,2016,35(8):17-19.
[12]何满潮,曹伍富,单仁亮,等.双向聚能拉伸爆破新技术[J].岩石力学与工程学报,2003,22(12):2 047-2 051.