基于ANSYS/LS-DYNA软件的水下钻孔爆破数值模拟
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摘要
结合ANSYS/LS-DYNA对水下钻孔爆破进行数值模拟分析,建立水介质轴向不耦合和空气轴向不耦合单孔钻孔爆破模型,对岩石爆破破碎机理进行研究。通过数值模拟进一步验证了水介质不耦合装药结构较空气不耦合装药结构爆破的优越性,能量利用率得到较大提高,同时得到了在水介质不耦合状态下的最佳水下钻孔爆破装药结构形式。对于航道整治、港口码头建设中涉及水下炸礁工程应用具有一定的参考价值。
Based on ANSYS/LS-DYNA,we carry out the numerical simulation analysis of underwater drilling blasting,establish the axial uncoupling and air axial uncoupled single hole drilling blasting model of water medium,and research the mechanism of rock blasting fracture.Furthermore,the superiority of the uncoupled charge structure of the water medium compared with the air uncoupled charge structure blasting is demonstrated by the numerical simulation,the energy utilization rate is greatly improved,and the optimal structural form of underwater drilling and blasting charge in the uncoupling state of the water medium is obtained. The structural form has certain reference value for the application of underwater reef engineering in waterway rectification and port terminal construction.
Based on ANSYS/LS-DYNA,we carry out the numerical simulation analysis of underwater drilling blasting,establish the axial uncoupling and air axial uncoupled single hole drilling blasting model of water medium,and research the mechanism of rock blasting fracture.Furthermore,the superiority of the uncoupled charge structure of the water medium compared with the air uncoupled charge structure blasting is demonstrated by the numerical simulation,the energy utilization rate is greatly improved,and the optimal structural form of underwater drilling and blasting charge in the uncoupling state of the water medium is obtained. The structural form has certain reference value for the application of underwater reef engineering in waterway rectification and port terminal construction.
引文
[1]齐世福,刘新波,李裕春.水下钻孔爆破的数值模拟[J].工程爆破,2010,16(4):13-17.
[2]宇文惠鑫.炮孔双介质不耦合装药断裂控制爆破理论研究与数值模拟[D].太原:太原理工大学,2006.
[3]武金贵.空气间隔装药光面爆破技术在隧道掘进中的应用研究[D].武汉:武汉理工大学,2011.
[4]顾翠莲.相邻特大断面隧道爆破施工相互影响的研究[D].上海:同济大学,2007.
[5]王庆国.隧道岩石爆破理论研究与数值模拟[D].成都:西南交通大学,2008.
[6]吴志刚.水介质耦合钻孔爆破及其在隧道工程中的应用[D].成都:西南交通大学,2009.
[7] LEE E L,HORNIG H C,KURY J W. Lawrence Livermore Laboratory Report[R]. Maryland:Ballistic Research Laboratories,1986.
[8] SEN G C,DING D. An investingation into the influence of quasistatic pressure on the mechanism of presplitting rock[J].Explosives engineering,1991(2):18-21.
[9] DAVID B.MSC/DYTRAN User's Manual[R]. Los Angeles:The MacNeal-Schwendler Corporation,1991.
[10]胡冬冬.隧道掘进水封爆破技术研究[D].武汉:武汉理工大学,2013.
[2]宇文惠鑫.炮孔双介质不耦合装药断裂控制爆破理论研究与数值模拟[D].太原:太原理工大学,2006.
[3]武金贵.空气间隔装药光面爆破技术在隧道掘进中的应用研究[D].武汉:武汉理工大学,2011.
[4]顾翠莲.相邻特大断面隧道爆破施工相互影响的研究[D].上海:同济大学,2007.
[5]王庆国.隧道岩石爆破理论研究与数值模拟[D].成都:西南交通大学,2008.
[6]吴志刚.水介质耦合钻孔爆破及其在隧道工程中的应用[D].成都:西南交通大学,2009.
[7] LEE E L,HORNIG H C,KURY J W. Lawrence Livermore Laboratory Report[R]. Maryland:Ballistic Research Laboratories,1986.
[8] SEN G C,DING D. An investingation into the influence of quasistatic pressure on the mechanism of presplitting rock[J].Explosives engineering,1991(2):18-21.
[9] DAVID B.MSC/DYTRAN User's Manual[R]. Los Angeles:The MacNeal-Schwendler Corporation,1991.
[10]胡冬冬.隧道掘进水封爆破技术研究[D].武汉:武汉理工大学,2013.