Analysis of explosion wave interactions and rock breaking effects during dual initiation

Renshu Yang; Jinjing Zuo; Liwei Ma; Yong Zhao; Zhen Liu; Quanmin Xie

doi:10.1007/s12613-024-2830-y

Volume 31 Issue 8

Aug. 2024

Turn off MathJax

Article Contents

Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2024 > 31(8): 1788-1798

Renshu Yang, Jinjing Zuo, Liwei Ma, Yong Zhao, Zhen Liu, and Quanmin Xie, Analysis of explosion wave interactions and rock breaking effects during dual initiation, Int. J. Miner. Metall. Mater., 31(2024), No. 8, pp. 1788-1798. https://doi.org/10.1007/s12613-024-2830-y

Cite this article as:

Renshu Yang, Jinjing Zuo, Liwei Ma, Yong Zhao, Zhen Liu, and Quanmin Xie, Analysis of explosion wave interactions and rock breaking effects during dual initiation, Int. J. Miner. Metall. Mater., 31(2024), No. 8, pp. 1788-1798. https://doi.org/10.1007/s12613-024-2830-y

Citation:

PDF( 3065 KB)

Research Article

Analysis of explosion wave interactions and rock breaking effects during dual initiation

+ Author Affiliations

Corresponding author:
Jinjing Zuo E-mail: cumtbzjj@163.com
Received: 21 November 2023; Revised: 20 December 2023; Accepted: 12 January 2024; Available online: 16 January 2024

Abstract

Abstract

In blasting engineering, the location and number of detonation points, to a certain degree, regulate the propagation direction of the explosion stress wave and blasting effect. Herein, we examine the explosion wave field and rock breaking effect in terms of shock wave collision, stress change of the blast hole wall in the collision zone, and crack propagation in the collision zone. The produced shock wave on the collision surface has an intensity surpassing the sum of the intensities of the two colliding explosion shock waves. At the collision location, the kinetic energy is transformed into potential energy with a reduction in particle velocity at the wave front and the wave front pressure increases. The expansion form of the superposed shock wave is dumbbell-shaped, the shock wave velocity in the collision area is greater than the radial shock wave velocity, and the average propagation angle of the explosion shock waves is approximately 60°. Accordingly, a fitted relationship between blast hole wall stress and explosion wave propagation angle in the superposition area is plotted. Under the experimental conditions, the superimposed explosion wave stress of the blast hole wall is approximately 1.73 times the single-explosion wave incident stress. The results of the model test and numerical simulations reveal that large-scale radial fracture cracks were generated on the blast hole wall in the superimposed area, and the width of the crack increased. The width of the large-scale radial fracture cracks formed by a strong impact is approximately 5% of the blast hole length. According to the characteristics of blast hole wall compression, the mean peak pressures of the strongly superimposed area are approximately 1.48 and 1.84 times those of the weakly superimposed and nonsuperimposed areas, respectively.
- blasting;
- shock wave collision;
- high-speed schlieren system;
- crack fracture characteristic;
- explosion wave

FullText(HTML)

Supplements(0)

References(31)

References

[1]	Z.D. Leng, J.S. Sun, W.B. Lu, et al., Mechanism of the in-hole detonation wave interactions in dual initiation with electronic detonators in bench blasting operation, Comput. Geotech., 129(2021), art. No. 103873. doi: 10.1016/j.compgeo.2020.103873
[2]	L.B. Jayasinghe, H.Y. Zhou, A.T.C. Goh, Z.Y. Zhao, and Y.L. Gui, Pile response subjected to rock blasting induced ground vibration near soil-rock interface, Comput. Geotech., 82(2017), p. 1. doi: 10.1016/j.compgeo.2016.09.015
[3]	R.P. Dhakal and T.C. Pan, Response characteristics of structures subjected to blasting-induced ground motion, Int. J. Impact Eng., 28(2003), No. 8, p. 813. doi: 10.1016/S0734-743X(02)00157-4
[4]	C.Q. Wu, H. Hao, and Y. Lu, Dynamic response and damage analysis of masonry structures and masonry infilled RC frames to blast ground motion, Eng. Struct., 27(2005), No. 3, p. 323. doi: 10.1016/j.engstruct.2004.10.004
[5]	Z.X. Zhang, D.F. Hou, and A. Aladejare, Empirical equations between characteristic impedance and mechanical properties of rocks, J. Rock Mech. Geotech. Eng., 12(2020), No. 5, p. 975. doi: 10.1016/j.jrmge.2020.05.006
[6]	Z.X. Zhang, Effect of double-primer placement on rock fracture and ore recovery, Int. J. Rock Mech. Min. Sci., 71(2014), p. 208. doi: 10.1016/j.ijrmms.2014.03.020
[7]	Q.B. Zhang, Z.X. Zhang, C.S. Wu, J.S. Yang, and Z.Y. Wang, Characteristics of vibration waves measured in concrete lining of excavated tunnel during blasting in adjacent tunnel, Coatings, 12(2022), No. 7, art. No. 954. doi: 10.3390/coatings12070954
[8]	Z.D. Leng, W.B. Lu, M. Chen, Y. Fan, P. Yan, and G.H. Wang, Explosion energy transmission under side initiation and its effect on rock fragmentation, Int. J. Rock Mech. Min. Sci., 86(2016), p. 245. doi: 10.1016/j.ijrmms.2016.04.016
[9]	Z.D. Leng, Y. Fan, W.B. Lu, Q.D. Gao, and J.R. Zhou, Explosion energy transmission and rock-breaking effect of in-hole dual initiation, Chin. J. Rock Mech. Eng., 38(2019), No. 12, p. 2451. doi: 10.13722/j.cnki.jrme.2019.0474
[10]	I.A. Onederra, J.K. Furtney, E. Sellers, and S. Iverson, Modelling blast induced damage from a fully coupled explosive charge, Int. J. Rock Mech. Min. Sci., 58(2013), p. 73. doi: 10.1016/j.ijrmms.2012.10.004
[11]	L. Liu, M. Chen, W.B. Lu, Y.G. Hu, and Z.D. Leng, Effect of the location of the detonation initiation point for bench blasting, Shock. Vib., 2015(2015), art. No. 907310.
[12]	Q.D. Gao, W.B. Lu, P. Yan, H.R. Hu, Z.W. Yang, and M. Chen, Effect of initiation location on distribution and utilization of explosion energy during rock blasting, Bull. Eng. Geol. Environ., 78(2019), No. 5, p. 3433. doi: 10.1007/s10064-018-1296-4
[13]	Q.D. Gao, W.B. Lu, Z.D. Leng, Z.W. Yang, Y.Z. Zhang, and H.R. Hu, Effect of initiation location within blasthole on blast vibration field and its mechanism, Shock. Vib., 2019(2019), art. No. 5386014.
[14]	Y.S. Miao, X.J. Li, H.H. Yan, X.H. Wang, and J.P. Sun, Experimental study of bilinear initiating system based on hard rock pile blasting, Shock. Vib., 2017(2017), art. No. 3638150.
[15]	Y.S. Miao, X.J. Li, H.H. Yan, X.H. Wang, and J.P. Sun. Research and application of a symmetric bilinear initiation system in rock blasting, Int. J. Rock Mech. Min. Sci., 102(2018), p. 52. doi: 10.1016/j.ijrmms.2018.01.017
[16]	H. Haeri, Experimental and numerical study on crack propagation in pre-cracked beam specimens under three-point bending, J. Cent. South Univ., 23(2016), No. 2, p. 430. doi: 10.1007/s11771-016-3088-y
[17]	J.J. Zuo, R.S. Yang, X.M. Ma, L.Y. Yang, and Y. Zhao, Explosion wave and explosion fracture characteristics of cylindrical charges, Int. J. Rock Mech. Min. Sci., 135(2020), art. No. 104501. doi: 10.1016/j.ijrmms.2020.104501
[18]	J.J. Zuo, R.S. Yang, M. Gong, and P. Xu. Explosion wave and crack field of an eccentric decoupled charge. Appl. Optics., 60(2021), No. 33, p. 10453. doi: 10.1364/AO.438530
[19]	R.S. Yang and J.J. Zuo, Experimental study on directional fracture blasting of cutting seam cartridge, Shock. Vib., 2019(2019), art. No. 1085921.
[20]	S.I. Gerasimov and N.A. Trepalov, Background oriented schlieren method as an optical method to study shock waves, Tech. Phys., 62(2017), No. 12, p. 1799. doi: 10.1134/S1063784217120088
[21]	J.J. Ding, J.H. Yang, Z.W. Ye, Z.D. Leng, C. Yao, and C.B. Zhou, Cut-blasting method selection and parameter optimization for rock masses under high in situ stress, Int. J. Geomech., 23(2023), No. 12, art. No. 04023211. doi: 10.1061/IJGNAI.GMENG-8802
[22]	S.C. Lin, Cylindrical shock waves produced by instantaneous energy release, J. Appl. Phys., 25(1954), No. 1, p. 54. doi: 10.1063/1.1721520
[23]	K. Wang, Z.Q. Shi, Y.J. Shi, Z.G. Zhao, and D. Zhang, Characteristics of electrical explosion of single wire in a vacuum and in the air, Acta Phys. Sin., 66(2017), No. 18, art. No. 185203. doi: 10.7498/aps.66.185203
[24]	K. Wang, Z.Q. Shi, Y.J. Shi, and Z.G. Zhao, Characteristics of the electrical explosion of fine metallic wires in vacuum, AIP Adv., 7(2017), No. 9, art. No. 095002.
[25]	L.C. Forde, W.G. Proud, S.M. Walley, P.D. Church, and I.G. Cullis. Ballistic impact studies of a borosilicate glass, Int. J. Impact. Eng., 37(2010), No. 5, p. 568. doi: 10.1016/j.ijimpeng.2009.10.005
[26]	M.R. Ayatollahi, A.R. Torabi, and M. Firoozabadi, Theoretical and experimental investigation of brittle fracture in V-notched PMMA specimens under compressive loading, Eng. Fract. Mech., 135(2015), p. 187. doi: 10.1016/j.engfracmech.2015.01.005
[27]	R. Zhang, R. Guo, and S.Y. Wang, Mixed mode fracture study of PMMA using digital gradient sensing method, Eng. Fract. Mech., 119(2014), No. 2, p. 164.
[28]	W. Xu, X.F. Yao, H.Y. Yeh, and G.C. Jin, Fracture investigation of PMMA specimen using coherent gradient sensing (CGS) technology, Polym. Test., 24(2005), No. 7, p. 900.
[29]	Y.B. Wang, Z.J. Wen, G.Q. Liu, et al., Explosion propagation and characteristics of rock damage in decoupled charge blasting based on computed tomography scanning, Int. J. Rock Mech. Min. Sci., 136(2020), art. No. 104540. doi: 10.1016/j.ijrmms.2020.104540
[30]	T.W. Dong, H.S. Liu, S.L. Jiang, et al., Simulation of free surface flow with a revolving moving boundary for screw extrusion using smoothed particle hydrodynamics, Comput. Model. Eng. Sci.., 95(2013), No. 5, p. 369.
[31]	Z.L. Wang, H.C. Wang, J.G. Wang, and N.C. Tian, Finite element analyses of constitutive models performance in the simulation of blast-induced rock cracks, Comput. Geotech., 135(2021), art. No. 104172. doi: 10.1016/j.compgeo.2021.104172