Rock breaking effect of plasma blasting under confining pressure

WANG Yanbing; LI Xue; WANG Zhaoyang; HUANG Zhehang; MEI Hongjia; LI Yangyang; LUO Lin

doi:10.11883/bzycj-2024-0089

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CHEN Longming, LI Zhibin, CHEN Rong, ZOU Daoxun. An experimental study on propagation characteristics of blast waves under plateau environment[J]. Explosion And Shock Waves, 2022, 42(5): 053206. doi: 10.11883/bzycj-2021-0279

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WANG Yanbing, LI Xue, WANG Zhaoyang, HUANG Zhehang, MEI Hongjia, LI Yangyang, LUO Lin. Rock breaking effect of plasma blasting under confining pressure[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0089

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Rock breaking effect of plasma blasting under confining pressure

doi: 10.11883/bzycj-2024-0089

School of Mechanics and Architecture Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China

Received Date: 2024-04-01
Rev Recd Date: 2024-08-11

Available Online: 2024-08-13

Abstract

Abstract

Plasma blasting rock breaking technology is characterized by green, high efficiency, controllability, and has a good application prospect in deep rock breaking. In order to provide a new rock-breaking method for the rock-breaking engineering under deep stress, four groups of plasma sandstone blasting tests under different peripheral pressures were carried out. The morphology, structure and distribution of three-dimensional cracks inside the rock were comparatively analyzed by CT scanning and three-dimensional reconstruction, so as to study the effectiveness of the plasma blasting technology in rock breaking under different peripheral pressures. Meanwhile numerical simulation was conducted by using LS-DYNA to establish the plasma equivalent explosive model, supplementing the verification of the role of plasma blasting in the coupled stress field, and investigating the mechanism of plasma blasting under different pressures, as well as the internal crack expansion, distribution and damage evolution laws in the rock body in the blasting process. The results show that under the same voltage, with the increase of the 3D peripheral pressure, the number and distribution range of cracks on the surface of the rock exhibit a trend of gradual reduction, while the complexity of the cracks within the sandstone and the depth of penetration are significantly reduced. Due to the dynamic stress field generated by plasma blasting and the static stress coupling field generated by the surrounding pressure, the shock wave generated by the plasma blasting in the initial stage of the explosion plays a major role for the effect of different pressures under the action of the rock crack morphology and the center of the expansion of the region does not show obvious differences. With the attenuation of the shock wave, the 3D surrounding pressure in the middle and late stages of the plasma blasting process plays a decisive role in inhibiting the cracks of the rock mass expansion and damage evolution. At the same time, with the increase of the surrounding pressure, the more significant inhibition effect on the expansion of cracks in the rock body, resulting in the body fractal dimension and damage degree of 3D cracks in the rock body, while the role of the surrounding pressure approximately follows a linearly decreasing relationship.
- plasma explosion,
- confining pressure,
- crack spatial morphology,
- three-dimensional reconstruction,
- LS-DYNA

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[1]	庞宁波, 杨永康. 地应力下岩石多孔爆破损伤演化数值模拟 [J]. 矿业研究与开发, 2023, 43(10): 119–125. DOI: 10.13827/j.cnki.kyyk.2023.10.018. PANG N B, YANG Y K. Numerical simulation on damage evolution of rock porous blasting under in-situ stress [J]. Mining Research and Development, 2023, 43(10): 119–125. DOI: 10.13827/j.cnki.kyyk.2023.10.018.
[2]	吴立, 张时忠, 林峰. 现代破岩方法综述 [J]. 探矿工程(岩土钻掘工程), 2000(2): 49–51. DOI: 10.3969/j.issn.1672-7428.2000.02.022. WU L, ZHANG S Z, LIN F. Synthesizing comment on modern rock fragmentation methods [J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2000(2): 49–51. DOI: 10.3969/j.issn.1672-7428.2000.02.022.
[3]	孙冰. 液相放电等离子体及其应用 [M]. 北京: 科学出版社, 2013: 7–11. SUN B. Discharge plasma in liquid and its applications[M]. Beijing: Science Press, 2013: 7–11.
[4]	何满潮, 谢和平, 彭苏萍, 等. 深部开采岩体力学研究 [J]. 岩石力学与工程学报, 2005, 24(16): 2803–2813. DOI: 10.3321/j.issn:1000-6915.2005.16.001. HE M C, XIE H P, PENG S P, et al. Study on rock mechanics in deep mining engineering [J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(16): 2803–2813. DOI: 10.3321/j.issn:1000-6915.2005.16.001.
[5]	陈明, 卢文波, 周创兵, 等. 初始地应力对隧洞开挖爆生裂隙区的影响研究 [J]. 岩土力学, 2009, 30(8): 2254–2258. DOI: 10.16285/j.rsm.2009.08.024. CHEN M, LU W B, ZHOU C B, et al. Influence of initial in-situ stress on blasting-induced cracking zone in tunnel excavation [J]. Rock and Soil Mechanics, 2009, 30(8): 2254–2258. DOI: 10.16285/j.rsm.2009.08.024.
[6]	杨栋, 李海波, 夏祥, 等. 高地应力条件下爆破开挖诱发围岩损伤的特性研究 [J]. 岩土力学, 2014, 35(4): 1110–1116, 1122. DOI: 10.16285/j.rsm.2014.04.012. YANG D, LI H B, XIA X, et al. Study of blasting-induced dynamic damage of tunnel surrounding rocks under high in-situ stress [J]. Rock and Soil Mechanics, 2014, 35(4): 1110–1116, 1122. DOI: 10.16285/j.rsm.2014.04.012.
[7]	梁瑞, 李生荣, 包娟, 等. 高地应力下岩体的爆破损伤及能量特性 [J]. 高压物理学报, 2022, 36(6): 064202. DOI: 10.11858/gywlxb.20220599. LIANG R, LI S R, BAO J, et al. Blasting damage and energy characteristics of rock mass under high in-situ stress [J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 064202. DOI: 10.11858/gywlxb.20220599.
[8]	马泗洲, 刘科伟, 杨家彩, 等. 初始应力下岩体爆破损伤特性及破裂机理 [J]. 爆炸与冲击, 2023, 43(10): 105201. DOI: 10.11883/bzycj-2023-0151. MA S Z, LIU K W, YANG J C, et al. Blast-induced damage characteristics and fracture mechanism of rock mass under initial stress [J]. Explosion and Shock Waves, 2023, 43(10): 105201. DOI: 10.11883/bzycj-2023-0151.
[9]	LI X D, LU K W, YANG J C, et al. Numerical study on blast-induced fragmentation in deep rock mass [J]. International Journal of Impact Engineering, 2022, 170: 104367. DOI: 10.1016/j.ijimpeng.2022.104367.
[10]	TIMOSHKIN I V, MACKERSIE J W, MACGREGOR S J. Plasma channel miniature hole drilling technology [J]. IEEE Transactions on Plasma Science, 2004, 32(5): 2055–2061. DOI: 10.1109/TPS.2004.835489.
[11]	韩育宏, 陆彬, 李庆, 等. 高压脉冲放电等离子体水处理技术研究进展 [J]. 河北大学学报(自然科学版), 2007, 27(S1): 190–194. DOI: 10.3969/j.issn.1000-1565.2007.z1.050. HAN Y H, LU B, LI Q, et al. Research on wastewater treatment by high-voltage plused discharge plasma [J]. Journal of Hebei University (Natural Science Edition), 2007, 27(S1): 190–194. DOI: 10.3969/j.issn.1000-1565.2007.z1.050.
[12]	尹志强. 水中高压脉冲放电的液电特性及煤体致裂效果研究[D]. 太原:太原理工大学, 2016. YIN Z Q. Research on the electro-hydraulic effect and coal crack effect of underwater high voltage discharge [D]. Taiyuan: Taiyuan university of technology, 2016.
[13]	PENG J Y, ZHANG F P, YANG X H. Dynamic fracture and fragmentation of rock-like materials under column charge blasting using electrical explosion of wires [J]. Powder Technology, 2020, 367: 517–526. DOI: 10.1016/j.powtec.2020.04.012.
[14]	张辉, 蔡志翔, 陈安明, 等. 液相放电等离子体破岩室内实验与破岩机理 [J]. 石油学报, 2020, 41(5): 615–628. DOI: 10.7623/syxb202005010. ZHANG H, CAI Z X, CHEN A M, et al. Experiments and mechanism of rock breaking by the plasma shock wave generated by underwater discharge [J]. Acta Petrolei Sinica, 2020, 41(5): 615–628. DOI: 10.7623/syxb202005010.
[15]	李铮. 脉冲放电破碎岩石影响规律仿真模拟研究 [D]. 大庆: 东北石油大学, 2022. DOI: 10.26995/d.cnki.gdqsc.2022.000906. LI Z. Simulation research on influence law of pulse discharge on rock breaking [D]. Daqing: Northeast Petroleum University, 2022. DOI: 10.26995/d.cnki.gdqsc.2022.000906.
[16]	WANG G, QIN X J, SHEN J N, et al. Quantitative analysis of microscopic structure and gas seepage characteristics of low-rank coal based on CT three-dimensional reconstruction of CT images and fractal theory [J]. Fuel, 2019, 256: 115900. DOI: 10.1016/j.fuel.2019.115900.
[17]	PARK H, LEE S R, KIM T H, et al. Numerical modeling of ground borehole expansion induced by application of pulse discharge technology [J]. Computers and Geotechnics, 2011, 38(4): 532–545. DOI: 10.1016/j.compgeo.2011.03.002.
[18]	余庆, 张辉, 杨睿智. 基于LS-DYNA的液电效应冲击波数值模拟[J]. 爆炸与冲击, 2022, 42(2): 024201. DOI: 10.11883/bzycj-2021-0214. YU Q, ZHANG H, YANG R Z. Numerical simulation of the shock wave generated by electro-hydraulic effect based on LS-DYNA [J]. Explosion and Shock Waves, 2022, 42(2): 024201. DOI: 10.11883/bzycj-2021-0214.
[19]	黄佑鹏, 王志亮, 杨辉, 等. 流固耦合法模拟岩石爆破时耦合范围的确定 [J]. 合肥工业大学学报(自然科学版), 2019, 42(12): 1672–1678, 1694. DOI: 10.3969/j.issn.1003-5060.2019.12.016. HUANG Y P, WANG Z L, YANG H, et al. Determination of coupling range in the simulation of rock blasting using fluid-solid coupling algorithm [J]. Journal of Hefei University of Technology (Natural Science), 2019, 42(12): 1672–1678, 1694. DOI: 10.3969/j.issn.1003-5060.2019.12.016.
[20]	姜鹏飞, 唐德高, 龙源. 不耦合装药爆破对硬岩应力场影响的数值分析 [J]. 岩土力学, 2009, 30(1): 275–279. DOI: 10.16285/j.rsm.2009.01.005. JIANG P F, TANG D G, LONG Y. Numerical analysis of influence of uncoupled explosive-charge structure on stress field in hard rocks [J]. Rock and Soil Mechanics, 2009, 30(1): 275–279. DOI: 10.16285/j.rsm.2009.01.005.
[21]	闫国斌, 于亚伦. 空气与水介质不耦合装药爆破数值模拟 [J]. 工程爆破, 2009, 15(4): 13–19, 65. DOI: 10.3969/j.issn.1006-7051.2009.04.004. YAN G B, YU Y L. Numerical simulation of air and water medium decoupling charge blasting [J]. Engineering Blasting, 2009, 15(4): 13–19, 65. DOI: 10.3969/j.issn.1006-7051.2009.04.004.

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