周阳威,蒋志明,邓琛,张庆彬,胡敏,于永纯
ZHOU Yang-wei,JIANG Zhi-ming,DENG Chen,ZHANG Qing-bin,HU Min,YU Yong-chun

• 1:长沙理工大学土木工程学院
• 2:中国交通建设总承包分公司
• 3:保山金厂河矿业有限公司

摘要(Abstract)：

为了研究环向切缝管装药爆炸时爆轰产物粒子的运动演化过程，采用光滑粒子流体动力学与有限元(SPH-FEM)耦合算法构建了环向切缝管爆破模型，在炸药上设置高斯点锁定不同位置的SPH粒子，观察分析不同粒子的运动速度、轨迹及岩体损伤过程。数值模拟结果表明：切缝与不切缝位置的爆轰产物粒子的运动形态存在显著差异，环向切缝中部与其端部以及非切缝段处均存在明显速度差。这种差异将在岩体中产生复杂应力场，有效促进被爆岩体的破坏。数值模拟研究结果验证了环向切缝管壁上的环向切缝能有效地调制爆轰波波形，进而通过切缝管狭缝的气隙聚能效应控制并会聚爆轰产物的流向与爆炸能量的定向释放，形成有别于传统空穴装药聚能效应的狭缝气隙聚能效应。
In order to study the particle motion evolution process of detonation product during CS-tube charge explosion, a CS-tube blasting model was constructed by using the coupling algorithm of Smoothed Particle Hydrodynamics and Finite Element Method(SPH-FEM). Gauss points were set on the explosive to lock SPH particles in different locations. The motion velocity, trajectory and rock mass damage process of different particles were observed and analyzed. The results of numerical simulation showed that there are great differences in the movement patterns of detonation product particles at the slotted and non-slotted positions. There are significantly velocity differences that between the centre of circumferential slits and slotted ends as well as the non-slotted sections, that could promoted the destruction of the blasted rock mass. It is proved that the circumferential slotted on the pipe shell of CS-tube could effectively modulated the detonation waveform, and then controlled the flow direction of detonation products and focused the directional release of explosion energy through the Slit's Air-gap Gathering Energy Effect(SAGE), which differed from the traditional Munroe Effect of shaped charge is formed.

关键词(KeyWords)： 环向切缝管;SPH-FEM;数值模拟;狭缝气隙聚能效应;爆炸能量控制
circumferential slotted tube;SPH-FEM;numerical simulation;slit's air-gap gathering energy effect;explosion energy control

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51508038);; 湖南省教育厅科学研究资助项目(20B010)

作者(Author): 周阳威,蒋志明,邓琛,张庆彬,胡敏,于永纯
ZHOU Yang-wei,JIANG Zhi-ming,DENG Chen,ZHANG Qing-bin,HU Min,YU Yong-chun

DOI: 10.19931/j.EB.20210387

参考文献(References)：

• [1] 汪平.某地下金属矿直眼掏槽爆破试验及控制措施[J].金属矿山，2021(8):52-56.WANG P.Straight-hole cutting blasting test and control measures in an underground metal mine[J].Metal Mine,2021(8):52-56.
• [2] 雷永健，周传波，饶学治.合理掏槽方法和爆破参数提高平巷掘进爆破率的实践[J].工程爆破，2006,12(1):71-74.LEI Y J,ZHOU C B,RAO X Z.Practice on improvement of blasting efficiency in drift excavation with reasonable cut method and blasting parameter[J].Engineering Blasting,2006,12(1):71-74.
• [3] 郭学庭，李腾，王乃伟，等.掘进巷道节理组分析及爆破参数优化分析[J].矿冶工程，2021,41(4):24-28.GUO X T,LI T,WANG N W,et al.Analysis of joint group in excavation roadway and optimization of blasting parameters[J].Mining and Metallurgical Engineering,2021,41(4):24-28.
• [4] 杨仁树，胡坤伦，肖同社，等.提高煤矿深部岩巷掘进爆破效率的试验研究[J].煤矿爆破，2005(3):1-4.YANG R S,HU K L,XIAO T S,et al.A study on improving blasting effectiveness in driving of deep-seated rock tunnels of coal mines[J].Coal Mine Blasting,2005(3):1-4.
• [5] 张奇，杨永琦，员永峰，等.直眼掏槽爆破效果的影响因素分析[J].岩土力学，2001,22(2):144-147.ZHANG Q,YANG Y Q,YUAN Y F,et al.Study on the factors affecting parallel hole cut blasting[J].Rock and Soil Mechanics,2001,22(2):144-147.
• [6] 林大能，陈寿如.空孔直眼掏槽成腔模型理论与实践分析[J].岩土力学，2005,26(3):479-483.LIN D N,CHEN S R.Experimental and theoretical study of parallel hole cut blasting with cavity[J].Rock and Soil Mechanics,2005,26(3):479-483.
• [7] 东兆星，李佃平，李正龙，等.隧道掘进常用掏槽方式及参数合理性评价与分析[J].岩石力学与工程学报，2003,22(9):1 478-1 482.DONG Z X,LI D P,LI Z L,et al.Evaluation and analysis on the rationality of undermine patterns and parameters for tunneling[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(9):1 478-1 482.
• [8] 李廷春，刘洪强.煤矿下山巷道爆破掘进技术试验研究[J].岩土力学，2012,33(1):35-40,47.LI T C,LIU H Q.Experimental study on blasting tunneling technology of downhill roadway in coal mine[J].Rock and Soil Mechanics,2012,33(1):35-40,47.
• [9] 杨建华.混合掏槽技术在坚硬岩石巷道掘进中的应用[J].煤矿开采，2009,14(1):64-66.YANG J H.Application of mixed cutting technology in hard rock roadway excavation[J].Coal Mining Technology,2009,14(1):64-66.
• [10] 张会听，李润奇，刁先鹏.复合型掏槽及中深孔一次起爆技术在大断面岩巷掘进中的使用[J].煤炭技术，2014,33(5):168-170.ZHANG H T,LI R Q,DIAO X P.Use of composite undercutting and middle-deep hole one-time detonation technology in driving large section of rock roadway[J].Coal Science and Technology,2014,33(5):168-170.
• [11] 单仁亮，黄宝龙，高文蛟，等.岩巷掘进准直眼掏槽爆破新技术应用实例分析[J].岩石力学与工程学报，2011,30(2):224-232.SHAN R L,HUANG B L,GAO W J,et al.Case studies of new technology application of quasi-parallel cut blasting in rock roadway drivage[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(2):224-232.
• [12] 曹湖，徐海峰.小断面岩石巷道掏槽爆破参数优化实验[J].工程爆破，2017,23(4):39-43.CAO H,XU H F.Parameters optimization experiment of cut blasting for small section rock tunnel[J].Engineering Blasting,2017,23(4):39-43.
• [13] 戴俊，杜晓丽.岩石巷道楔形掏槽爆破参数研究[J].矿业研究与开发，2011,31(2):90-93,104.DAI J,DU X L.Research on blasting parameters of wedge-shaped cutting for rock tunnel driving[J].Mining Research and Development,2011,31(2):90-93,104.
• [14] 龚汉松.坚硬岩石聚能掏槽爆破的试验研究[J].探矿工程，1991(2):52-54.GONG H S.Experimental study on shaped charge cut blasting in hard rock[J].Drilling Engineering,1991(2):52-54.
• [15] 杨仁树，佟强，杨国梁.切缝药包掏槽爆破试验研究[J].煤矿安全，2010,41(10):11-14.YANG R S,TONG Q,YANG G L.Experimental study on cut blasting with slotted cartridge[J].Safety in Coal Mines,2010,41(10):11-14.
• [16] 杨国梁，杨仁树，佟强.切缝药包掏槽爆破研究与应用[J].煤炭学报，2012,37(3):385-388.YANG G L,YANG R S,TONG Q.Research and application of cut blasting with slotted charge[J].Journal of China Coal Society,2012,37(3):385-388.
• [17] 彭松.切缝管狭缝聚能效应铅管模拟与隧道爆破试验研究[D].长沙：长沙理工大学，2017.PENG S.Experimental study on the slit gathering energy effect in slotted pipe by means of lead-tube test and tunnel blasting[D].Changsha:Changsha University of Science and Technology,2017.
• [18] 孙周，蒋志明，周凯，等.切缝管狭缝聚能效应现场铅管模拟试验研究[J].公路与汽运，2018(6):150-152.SUN Z,JIANG Z M,ZHOU K,et al.Study on field simulation test of slit shaped energy effect of slotted tube[J].Highway and Automobile Applications,2018(6):150-152.
• [19] ZHAO X H,WANG G H,LU W B,et al.Damage features of RC slabs subjected to air and underwater contact explosions [J].Ocean Engineering,2018:147.
• [20] 王志亮，毕程程，李鸿儒.混凝土爆破损伤的SPH-FEM耦合法数值模拟[J].爆炸与冲击，2018,38(6):1 419-1 428.WANG Z L,BI C C,LI H R.Numerical simulation of concrete blasting damage by sph-fem coupling method[J].Explosion and Shock Waves,2018,38(6):1 419-1 428.
• [21] 李建军，朱文峰.基于SPH的平面曲线铝合金薄板滚压成形数值仿真与试验研究[J].机械工程学报，2020,56(24):61-71.LI J J,ZHU W F.Numerical simulation and experiment of roller hemming-compression with flat surface-curved edge aluminum alloy sheet based on SPH[J].Journal of Mechanical Engineering,2020,56(24):61-71.
• [22] 吴波，韦汉，徐世祥，等.不同装药结构的双向聚能药包爆破数值研究[J].工程爆破，2021,27(1):14-21.WU B,WEI H,XU S X,et al.Numerical study of two-way shaped charge blasting with different charge structures[J].Engineering Blasting,2021,27(1):14-21.
• [23] 叶海旺，王进.节理岩体爆破数值模拟[J].爆破，2009,26(4):13-16,37.YE H W,WANG J.Numerical simulation of blasting in rock mass with joints and fractures[J].Blasting,2009,26(4):13-16,37.
• [24] 李必红.椭圆双极线型聚能药柱爆炸理论及预裂爆破技术研究[D].长沙：中南大学，2013.LI B H.Research on theory and application technology of elliptic bipolar linear shaped charge's presplit blasting[D].Changsha:Central South University,2013.
• [25] 蒋耀港.冷激波灭火系统的应用研究[D].合肥：中国科学技术大学，2012.JIANG Y G.Application study of the cold shock wave fire-extinguishing system[D].Hefei:University of Science and Technology of China,2012.
• [26] 石少卿.AUTODYN工程动力分析及应用实例[M].北京：中国建筑工业出版社，2012:40.SHI S Q.AUTODYN engineering dynamic analysis and application example[M].Beijing:China Construction Industry Press,2012:40.