基于EDEM的放顶煤液压支架放煤过程的仿真研究
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摘要
为研究放顶煤液压支架的放煤过程和直接顶与基本顶之间的破断规律,以ZF15000/28/52型出口放顶煤液压支架为研究对象,采用EDEM离散元仿真软件建立三维仿真模型,综合考虑煤岩颗粒、成分对放煤规律的影响,得到液压支架放煤过程、煤岩颗粒运动趋势和速度及直接顶和基本顶的粘结力链,仿真结果与实际落煤情况基本一致,为研究液压支架放煤过程提供了一种新的思路。
In order to study the caving process of caving coal hydraulic support and the breaking law between immediate roof and basic roof,Taking the ZF15000/28/52 export caving hydraulic support as the research object, establish a three-dimensional simulation model by EDEM(an discrete element simulation software),Taking Comprehensive consideration the effects of coal and rock particles and composition on coal caving,finally obtained the coal caving process with hydraulic support, the movement trend and velocity of coal and rock particles and the bond force chain of immediate roof and the basic roof,The simulation results are basically consistent with the actual coal caving process, which provides a new way to study the caving process of hydraulic support.
In order to study the caving process of caving coal hydraulic support and the breaking law between immediate roof and basic roof,Taking the ZF15000/28/52 export caving hydraulic support as the research object, establish a three-dimensional simulation model by EDEM(an discrete element simulation software),Taking Comprehensive consideration the effects of coal and rock particles and composition on coal caving,finally obtained the coal caving process with hydraulic support, the movement trend and velocity of coal and rock particles and the bond force chain of immediate roof and the basic roof,The simulation results are basically consistent with the actual coal caving process, which provides a new way to study the caving process of hydraulic support.
引文
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[8] 王国强,赫万军,王继新.离散单元法及其在EDEM上的实践[M].西安:西北工业大学出版社, 2010:1-5; 2010:16-28.WANG GuoQiang, HE WanJun,WANG JiXin. Discrete element method and practice of the EDEM[M]. Xi’an:Northwestern Polytechnical University Press,2010: 1-5;2010:16-28(In Chinese).
[9] 毛君,刘歆妍,陈洪月,等. 基于EDEM的采煤机滚筒工作性能的仿真研究[J].煤炭学报,2017,(04):1069-1077.MAO Jun,LIU XinYan,CHEN HongYue,et al.Simulation research of shearer drum cutting performance based on EDEM[J]. Journal of China Coal Society,2017,42(4): 1069-1077(In Chinese).
[10] 李建国,石博强,刘瑞月,等.基于HyperMesh-EDEM-Patran耦合的铲运机铲斗强度分析[J].机械强度,2016(02):385-388.LI JianGuo,SHI BoQiang,LIU RuiYue,et al.Strength analysis of scraper bucket based on the coupling of hypermesh-EDEM-patran [J].Journal of Mechanical Strength,2016 (02):385-388(In Chinese).
[11] 牛艳奇,刘伟,张德生. 基于NSGA-Ⅱ算法的超前液压支架多目标优化设计[J]. 机械强度,2015 (03):450-455.NIU YanQi,LIU Wei,ZHANG DeSheng.Advance hydraulic support muliti-objective optimization design based on NSGA-II algorithm [J].Journal of Mechanical Strength,2015 (03):450-455(In Chinese).
[2] 康立军,齐庆新,连志斌.放顶煤开采离散介质数值模拟分析程序及应用[J].煤矿开采,1998(02):3-5.KANG LiJun,QI QingXin,LIAN ZhiBin.The numerical simulation analysis program and application of caving coal mining discrete media[J].Coal Mining,1998(02):3-5 (In Chinese).
[3] 王泳嘉,邢纪波.离散元法及其在煤矿开采中的应用[J].煤矿开采,1993(04):56-58.WANG YongJia,XING JiBo.Discrete Element Method and its Application in Coal Mining[J].Coal Mining,1993(04):56-58(In Chinese).
[4] 富强,闫少宏,吴健. 综放开采松软顶煤落放规律的理论研究[J]. 岩石力学与工程学报,2002(04):568-572.FU Qiang,YAN ShaoHong,WU Jian.Theoretical research on loose top-coal drawing of longwall sublevel caving mining[J].Chinese Journal of Rock Mechanics and Engineering,2002(04):568-572(In Chinese).
[5] 方新秋,钱鸣高,曹胜根,等.综放开采不同顶煤端面顶板稳定性及其控制[J].中国矿业大学学报,2002(01): 72-77.FANG XinQiu,QIAN MingGao,CAO ShengGen,et al.Research on tip-to-face roof stability and its control for different hardness coals in fully-mechanized top-coal caving mining[J].Journal of China University of Mining& Technology,2002(01): 72-77(In Chinese).
[6] 谢广祥,黄金桥.顶煤放出规律计算机可视化仿真[J].煤炭学报,2002(03):264-267.XIE GuangXiang,HUANG JinQiao.Computer visualized simulation on coal drawing law[J].Journal of China Coal Society,2002(03):264-267 (In Chinese).
[7] 蒋金泉,曲华,谭云亮.综放顶煤放出规律与放煤步距的离散元仿真研究[J].岩石力学与工程学报,2004(18):3070-3075.JIANG JinQuan,QU Hua,TAN YunLiang.Numerical simulation by distinct element code on drawing law and interval of fully- mechanized coal mining with caving method[J].Chinese Journal of Rock Mechanics and Engineering,2004(18):3070-3075 (In Chinese).
[8] 王国强,赫万军,王继新.离散单元法及其在EDEM上的实践[M].西安:西北工业大学出版社, 2010:1-5; 2010:16-28.WANG GuoQiang, HE WanJun,WANG JiXin. Discrete element method and practice of the EDEM[M]. Xi’an:Northwestern Polytechnical University Press,2010: 1-5;2010:16-28(In Chinese).
[9] 毛君,刘歆妍,陈洪月,等. 基于EDEM的采煤机滚筒工作性能的仿真研究[J].煤炭学报,2017,(04):1069-1077.MAO Jun,LIU XinYan,CHEN HongYue,et al.Simulation research of shearer drum cutting performance based on EDEM[J]. Journal of China Coal Society,2017,42(4): 1069-1077(In Chinese).
[10] 李建国,石博强,刘瑞月,等.基于HyperMesh-EDEM-Patran耦合的铲运机铲斗强度分析[J].机械强度,2016(02):385-388.LI JianGuo,SHI BoQiang,LIU RuiYue,et al.Strength analysis of scraper bucket based on the coupling of hypermesh-EDEM-patran [J].Journal of Mechanical Strength,2016 (02):385-388(In Chinese).
[11] 牛艳奇,刘伟,张德生. 基于NSGA-Ⅱ算法的超前液压支架多目标优化设计[J]. 机械强度,2015 (03):450-455.NIU YanQi,LIU Wei,ZHANG DeSheng.Advance hydraulic support muliti-objective optimization design based on NSGA-II algorithm [J].Journal of Mechanical Strength,2015 (03):450-455(In Chinese).