黄金科学技术 ›› 2021, Vol. 29 ›› Issue (1): 108-119.doi: 10.11872/j.issn.1005-2518.2021.01.093
Peng JIN(),Kewei LIU(),Xudong LI,Jiacai YANG
摘要:
为认识深部高地应力岩体水耦合爆破裂纹扩展过程及机理,选择试验验证的RHT本构,采用LS-DYNA对水耦合装药单孔在不同原位应力场下的岩体爆破裂纹扩展进行数值分析。模拟结果表明:水耦合的方法延长了爆炸作用时间,提高了岩体中爆炸应力峰值和PPV(质点振动速度峰值),增强了爆破致裂岩体的效果;原位应力在深部岩体水耦合爆破中起到增加岩体中应力和PPV的作用。研究表明:在不同的地应力条件下,均存在某一最优水不耦合系数,且最优不耦合系数随原位应力的增加而减小,水耦合时,在原位应力为0,10,20,30,40 MPa的条件下,最优不耦系数分别为5.00、3.30、2.63、1.56和1.25。
中图分类号:
Banadaki M M D,2010.Stress-wave Induced Fracture in Rock Due to Explosive Action[D].Toronto:University of Toronto Ontario,Canada. | |
Banadaki M M D,Mohanty B,2012.Numerical simulation of stress wave induced fractures in rock[J].International Journal of Impact Engineering,40/41:16-25. | |
Borrvall T,Riedel W,2011.The RHT concrete model in LS-DYNA[C]//Proceedings of The 8th European LS-DYNA User Conference.Strasbourg:Strasbourg University:1-14. | |
Dehghan Banadaki M,Mohanty B,2008.Blast induced pressures in some granitic rocks[C]//ISRM International Symposium-5th Asian Rock Mechanics Symposium,Barcelona, Spain: Curran Associates, Inc.933-939. | |
Fei Honglu,Liu Yu,Qian Qifei,al et,2020.Distribution of blasthole fracture in eccentric charge under in-situ stress[J].Gold Science and Technology,28(2):228-237. | |
Hong Zhixian,Guo Chao,Xiong Hongwu,al et,2019.Numerical study of impact of lateral pressure coefficient on decoupling charge blasting[J].Blasting,36(3):65-75,89. | |
Lee E,Hornig H,Kury J,1968.Adiabatic expansion of high explosive detonation products[R]. Livermore: University of California Radiation Laboratory:1-38. | |
Li X D,Liu K W,Yang J C,2020.Study of the rock crack propagation induced by blasting with a decoupled charge under high in situ stress[J].Advances in Civil Engineering,2020(3):1-18. | |
Li Xiaohan,Liu Kewei,Yang Jiacai,al et,2019.Analysis of blasting vibration effects under different ground stress[J].Gold Science and Technology,27(2):241-247. | |
Lü Lei,2010.Study on deep hole water-coupling blasting to prevent rock burst technology and application[J].Zhengzhou:Henan Polytechnic University. | |
Ming Feng,Zhu Wenhua,Li Dongqing,2012.Application of water-couple charge blasting in tunnel excavation[J].Chinese Journal of Underground Space and Engineering,(5):124-129. | |
Sun Lei,Ren Qingfeng,Zong Qi,2010.Application of water-decoupled charge in smooth blasting of coal mine rock tunnel[J].Blasting,27(3):29-32. | |
Wang J,Yin Y,Esmaieli K,2018.Numerical simulations of rock blasting damage based on laboratory-scale experiments[J].Journal of Geophysics and Engineering,15(6):2399-2417. | |
Wang Sheng,2018.Numerical simulation and application of water-coupled charge based on DYNA in caving[J].Energy and Energy Conservation,(12):175-177. | |
Wang Z L,Li Y C,Shen R F,2007.Numerical simulation of tensile damage and blast crater in brittle rock due to underground explosion[J].International Journal of Rock Mechanics and Mining Sciences,44(5):730-738. | |
Wang Zhiliang,Li Yongchi,2005.Numerical simulation on effects of radial water-decoupling coefficient in engineering blast[J].Rock and Soil Mechanics,(12):1926-1930. | |
Xie L X,Lu W B,Zhang Q B,al et,2016.Damage evolution mechanisms of rock in deep tunnels induced by cut blasting[J].Tunnelling and Underground Space Technology,58:257-270. | |
Xie L X,Lu W B,Zhang Q B,al et,2017.Analysis of damage mechanisms and optimization of cut blasting design under high in-situ stresses[J].Tunnelling and Underground Space Technology,66:19-33. | |
Yan Shilong,Xu Ying,2005.Numerical simulation of water-coupled charge rock blasting mechanism[J].Chinese Journal of Underground Space and Engineering,1(6):921-924. | |
Yi C P,Johansson D,Greberg J,2017.Effects of in-situ stresses on the fracturing of rock by blasting[J].Computers and Geotechnics,104:321-330 | |
Zhang Mingxu,Shang Hui,2002.Study of presplitting blasting experiment in water-bearing blasthole of open pit slope[J].Nonferrous Mine,(3):8-10. | |
Zhu Lichen,Sun Yong,2000.Deep-hole water coupled furrow blasting[J].Blasting,6(2):67-69. | |
Zong Qi,Li Yongchi,Xu Ying,2004.Preliminary discussion on shock pressure on hole wall when water-couple charge blasting in the hole[J].Journal of Hydrodynamics,(5):49-54. | |
Zong Qi,Meng Dejun,2003.Influence of different kinds of hole charging structue on explosion energy transmission[J].Chinese Journal of Rock Mechanics and Engineering,22(4):641-641. | |
费鸿禄,刘雨,钱起飞,等,2020.地应力作用下偏心装药的炮孔裂隙分布[J].黄金科学技术,28(2):228-237. | |
洪志先,郭超,熊宏武,等,2019.侧压系数对不耦合装药爆破影响数值模拟研究[J].爆破,36(3):65-75,89. | |
李萧翰,刘科伟,杨家彩,等,2019.不同地应力下爆破振动效应分析[J].黄金科学技术,27(2):241-247. | |
吕磊,2010.深孔水耦合爆破防治冲击地压技术及应用研究[D].郑州:河南理工大学. | |
明锋,祝文化,李东庆,2012.水耦合装药爆破在隧道掘进中的应用[J].地下空间与工程学报,(5):124-129. | |
孙磊,任庆峰,宗琦,2010.水不耦合装药结构在煤矿井巷掘进光面爆破中的应用[J].爆破,27(3):29-32. | |
王胜,2018.基于DYNA的水耦合装药在放顶中的数值模拟应用[J].能源与节能,(12):175-177. | |
王志亮,李永池,2005.工程爆破中径向水不耦合系数效应数值仿真[J].岩土力学,(12):1926-1930. | |
颜事龙,徐颖,2005.水耦合装药爆破破岩机理的数值模拟研究[J].地下空间与工程学报,1(6):921-924. | |
张明旭,尚辉,2002.露天边坡含水炮孔预裂爆破试验研究[J].有色矿山,(3):8-10. | |
朱礼臣,孙咏,2000.深孔水耦合爆破开挖沟槽[J].工程爆破,6(2):67-69. | |
宗琦,李永池,徐颖,2004.炮孔水耦合装药爆破孔壁冲击压力研究[J].水动力学研究与进展,(5):49-54. | |
宗琦,孟德君,2003.炮孔不同装药结构对爆破能量影响的理论探讨[J].岩石力学与工程学报,22(4):641-641. |
[1] | 何祥锐, 邱贤阳, 史秀志, 李小元, 支伟, 刘军, 王远来. 基于非线性弹性地基梁的地下矿山充填开采覆岩移动规律研究[J]. 黄金科学技术, 2024, 32(4): 640-653. |
[2] | 虞云林, 侯克鹏, 杨八九, 程涌, 卢泰宏, 张楠楠. 云锡高峰山矿段矿柱回采方案研究[J]. 黄金科学技术, 2024, 32(3): 445-457. |
[3] | 李波, 温晨, 史秀志. 高应力扇形中深孔采场边帮控制爆破参数优化[J]. 黄金科学技术, 2024, 32(3): 511-522. |
[4] | 刘宽, 莫冠旺, 李响, 沈平欢, 万波, 刘建坤. 超大断面扁平结构隧道施工参数优化研究[J]. 黄金科学技术, 2024, 32(2): 330-344. |
[5] | 凡兴禹, 王雪林. 基于改进XGBoost算法的深部巷道松动圈智能预测研究[J]. 黄金科学技术, 2024, 32(1): 109-122. |
[6] | 王开彬, 刘钦, 王洪涛. 压力型锚索锚固段荷载传递特征及影响因素研究[J]. 黄金科学技术, 2024, 32(1): 123-131. |
[7] | 徐泽峰, 史秀志, 黄仁东, 丁文智, 陈新. 基于满管输送的充填管路优化研究[J]. 黄金科学技术, 2024, 32(1): 160-169. |
[8] | 李杰林, 刘一良, 王玉普, 李在利, 周科平, 程春龙. 高温独头巷道压抽混合式通风参数对人工制冷降温效果的影响[J]. 黄金科学技术, 2024, 32(1): 63-74. |
[9] | 费鸿禄, 纪海楠, 山杰. 露天台阶水介质间隔装药结构优选及对比试验研究[J]. 黄金科学技术, 2023, 31(6): 930-943. |
[10] | 单文法, 毛先成, 刘占坤, 邓浩, 陈进, 张维, 王海正, 杨鑫. 胶东大尹格庄金矿床成矿过程数值模拟及其找矿意义[J]. 黄金科学技术, 2023, 31(5): 707-720. |
[11] | 张玉, 王文己, 孙加奇, 肖永刚. 层理结构板岩动态断裂特性[J]. 黄金科学技术, 2023, 31(5): 803-810. |
[12] | 赵亚楠, 赵一航, 蒋中明, 赵红敏. 基于离散元法的高放核废料储罐静动力稳定性初步研究[J]. 黄金科学技术, 2023, 31(4): 592-604. |
[13] | 李杰林,王京瑶,肖益盖,李小双. 不同应力路径下岩石细观力学性能离散元研究[J]. 黄金科学技术, 2023, 31(1): 102-112. |
[14] | 周可凡,刘科伟,郭腾飞. 基于声发射的倾斜软硬互层岩石破坏特性研究[J]. 黄金科学技术, 2022, 30(6): 923-934. |
[15] | 马恒,高嘉毅,李世虎,高科. 双机并联空气幕射流角度对巷道风流的影响[J]. 黄金科学技术, 2022, 30(5): 743-752. |
|