The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge

Yanbing Wang; Bingbing Yu; Ji Kong; Maike Wang

doi:doi:10.11648/j.ajmie.20190405.12

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The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge

Yanbing Wang, Bingbing Yu, Ji Kong, Maike Wang

Published in American Journal of Mechanical and Industrial Engineering (Volume 4, Issue 5)

Received: 19 September 2019 Accepted: 29 September 2019 Published: 6 November 2019

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Abstract

The propagation characteristics and rock breaking mechanism of explosive stress wave have aroused the interests of many researchers. This work proposed a method that separates the explosion stress wave from detonation gas and designed the testing unit accordingly. It combined the resistance ultra-dynamic strain test to conduct the strain measurement on local key points and obtained the strain waveforms of representative measuring points under the explosion stress wave. The characteristics of these strain waveforms were analyzed and the energy-based spectral analysis of these waveforms was done using Matlab. Findings show that both strain peak and stress rate peak are the biggest along the slot direction, followed by that along the non-slot direction, 135° direction and 45° direction in a descending order; the similar low-frequency band was detected at the measuring point with the same distance to the explosion source, while the high-frequency band was unevenly distributed. In the rock breaking experiment under the stress wave of slotted cartridge, with regards to the measuring points at the same distance to borehole, the similar low-frequency bands appeared and concentrated in 292.8-448Hz. The included angle between each measuring point and the slot was different, which impacted the propagation of stress wave to some extent and resulted in uneven distribution of the high-frequency bands.

Published in	American Journal of Mechanical and Industrial Engineering (Volume 4, Issue 5)
DOI	10.11648/j.ajmie.20190405.12
Page(s)	76-85
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Slotted Cartridge, Explosion, Stress Wave, Spectral Analysis

References

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[3]	D. Bonamy, K. Ravi-Chandar. Interaction of Shear Waves and Propagating Cracks [J]. PHYSICAL REVIEW LETTERS, 2003, 91: 1-4.
[4]	K. RAVI-CHANDAR, W. G. KNAUSS. An experimental investigation into dynamic fracture: IV. On the interaction of stress waves with propagating cracks [J]. International Journal of Fracture, 1984, 26: 189-200.
[5]	Dally J W. An Introduction to Dynamic Photoelasticity [J]. Exp Mech, 1980, 20 (12): 409-416.
[6]	H. P. Rossmanith and W. L. Fourney. Fracture Initiation and Stress Wave Diffraction at Cracked Interfaces in Layered Media I. Brittle/Brittle Transition [J]. Rock Mechanics, 1982, 14: 209-233.
[7]	Guo Zhanqi, Fei Zhizhong, Wu Mingdi. Dynamic photoelastic numerical analysis of specimens containing cracks under explosive loading [J], Journal of northern Jiaotong university, 1994, 18 (1): 81-88.
[8]	Wang Mingyang, Qian Qihu. Attenuation law of explosive wave propagation in cracks [J], Chinese journal of geotechnical engineering, 1995, 17 (2): 42-46.
[9]	Li Xibing. Influence of the structural weakness planes in rock mass on the propagation of stress waves [J], Explosion and shock waves, 1993, 13 (4): 334-342.
[10]	Sha Guiying, Liu Diankui, Liu Ruitang, et al. Dynamic Analyses Method of Linear-elastic Fracture under Stress Wave Loading [J], Explosion and shock waves, 2002, (1): 56-60.
[11]	Shan Renliang, Zhou Jijun, Xia Yu, et al. Experimental investigation on dynamic response of rockbolt under blasting load [J], Chinese Journal of Rock Mechanics and Engineering, 2011, 30 (8): 1540-1546.
[12]	Pu Chanjin, Guo Xuebin, Xiao Zhengxue, et al. Dynamic strain text and analysis on pipe protecting borehole wall blasting [J], Journal of China coal society, 2008, 33 (10): 1163-1167.
[13]	Gaviglio P. Longitudinal waves propagation in a limestone: the relationship between velocity and density [J]. Rock Mechanics and Rock Engineering, 1989, 22: 299-306.
[14]	Liu Guoqing. Research on Rock Damage Range under Cutting Seam Cartridge Blasting [D]. Beijing: China university of mining and technology (Beijing), 2013, 6.
[15]	Bauer A, Calder P N. Open pit and Blasting Seminar [D]. Canada: Queens University, 1978.
[16]	Zhou Jijun. Effects of blast loading on rockbolt anchorage structure near the working face in model test [D]. Beijing: China university of mining and technology (Beijing), 2011, 5.

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APA Style

Yanbing Wang, Bingbing Yu, Ji Kong, Maike Wang. (2019). The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge. American Journal of Mechanical and Industrial Engineering, 4(5), 76-85. https://doi.org/10.11648/j.ajmie.20190405.12

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ACS Style

Yanbing Wang; Bingbing Yu; Ji Kong; Maike Wang. The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge. Am. J. Mech. Ind. Eng. 2019, 4(5), 76-85. doi: 10.11648/j.ajmie.20190405.12

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AMA Style

Yanbing Wang, Bingbing Yu, Ji Kong, Maike Wang. The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge. Am J Mech Ind Eng. 2019;4(5):76-85. doi: 10.11648/j.ajmie.20190405.12

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@article{10.11648/j.ajmie.20190405.12,
  author = {Yanbing Wang and Bingbing Yu and Ji Kong and Maike Wang},
  title = {The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge},
  journal = {American Journal of Mechanical and Industrial Engineering},
  volume = {4},
  number = {5},
  pages = {76-85},
  doi = {10.11648/j.ajmie.20190405.12},
  url = {https://doi.org/10.11648/j.ajmie.20190405.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmie.20190405.12},
  abstract = {The propagation characteristics and rock breaking mechanism of explosive stress wave have aroused the interests of many researchers. This work proposed a method that separates the explosion stress wave from detonation gas and designed the testing unit accordingly. It combined the resistance ultra-dynamic strain test to conduct the strain measurement on local key points and obtained the strain waveforms of representative measuring points under the explosion stress wave. The characteristics of these strain waveforms were analyzed and the energy-based spectral analysis of these waveforms was done using Matlab. Findings show that both strain peak and stress rate peak are the biggest along the slot direction, followed by that along the non-slot direction, 135° direction and 45° direction in a descending order; the similar low-frequency band was detected at the measuring point with the same distance to the explosion source, while the high-frequency band was unevenly distributed. In the rock breaking experiment under the stress wave of slotted cartridge, with regards to the measuring points at the same distance to borehole, the similar low-frequency bands appeared and concentrated in 292.8-448Hz. The included angle between each measuring point and the slot was different, which impacted the propagation of stress wave to some extent and resulted in uneven distribution of the high-frequency bands.},
 year = {2019}
}

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TY  - JOUR
T1  - The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge
AU  - Yanbing Wang
AU  - Bingbing Yu
AU  - Ji Kong
AU  - Maike Wang
Y1  - 2019/11/06
PY  - 2019
N1  - https://doi.org/10.11648/j.ajmie.20190405.12
DO  - 10.11648/j.ajmie.20190405.12
T2  - American Journal of Mechanical and Industrial Engineering
JF  - American Journal of Mechanical and Industrial Engineering
JO  - American Journal of Mechanical and Industrial Engineering
SP  - 76
EP  - 85
PB  - Science Publishing Group
SN  - 2575-6060
UR  - https://doi.org/10.11648/j.ajmie.20190405.12
AB  - The propagation characteristics and rock breaking mechanism of explosive stress wave have aroused the interests of many researchers. This work proposed a method that separates the explosion stress wave from detonation gas and designed the testing unit accordingly. It combined the resistance ultra-dynamic strain test to conduct the strain measurement on local key points and obtained the strain waveforms of representative measuring points under the explosion stress wave. The characteristics of these strain waveforms were analyzed and the energy-based spectral analysis of these waveforms was done using Matlab. Findings show that both strain peak and stress rate peak are the biggest along the slot direction, followed by that along the non-slot direction, 135° direction and 45° direction in a descending order; the similar low-frequency band was detected at the measuring point with the same distance to the explosion source, while the high-frequency band was unevenly distributed. In the rock breaking experiment under the stress wave of slotted cartridge, with regards to the measuring points at the same distance to borehole, the similar low-frequency bands appeared and concentrated in 292.8-448Hz. The included angle between each measuring point and the slot was different, which impacted the propagation of stress wave to some extent and resulted in uneven distribution of the high-frequency bands.
VL  - 4
IS  - 5
ER  -

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Author Information

Yanbing Wang

School of Mechanics and Architecture Engineering, China Universityof Mining and Technology (Beijing), Beijing, China
Bingbing Yu

School of Mechanics and Architecture Engineering, China Universityof Mining and Technology (Beijing), Beijing, China
Ji Kong

School of Mechanics and Architecture Engineering, China Universityof Mining and Technology (Beijing), Beijing, China
Maike Wang

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

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Plain Text BibTeX RIS

APA Style

Yanbing Wang, Bingbing Yu, Ji Kong, Maike Wang. (2019). The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge. American Journal of Mechanical and Industrial Engineering, 4(5), 76-85. https://doi.org/10.11648/j.ajmie.20190405.12

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ACS Style

Yanbing Wang; Bingbing Yu; Ji Kong; Maike Wang. The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge. Am. J. Mech. Ind. Eng. 2019, 4(5), 76-85. doi: 10.11648/j.ajmie.20190405.12

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AMA Style

Yanbing Wang, Bingbing Yu, Ji Kong, Maike Wang. The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge. Am J Mech Ind Eng. 2019;4(5):76-85. doi: 10.11648/j.ajmie.20190405.12

Copy | Download

@article{10.11648/j.ajmie.20190405.12,
  author = {Yanbing Wang and Bingbing Yu and Ji Kong and Maike Wang},
  title = {The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge},
  journal = {American Journal of Mechanical and Industrial Engineering},
  volume = {4},
  number = {5},
  pages = {76-85},
  doi = {10.11648/j.ajmie.20190405.12},
  url = {https://doi.org/10.11648/j.ajmie.20190405.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmie.20190405.12},
  abstract = {The propagation characteristics and rock breaking mechanism of explosive stress wave have aroused the interests of many researchers. This work proposed a method that separates the explosion stress wave from detonation gas and designed the testing unit accordingly. It combined the resistance ultra-dynamic strain test to conduct the strain measurement on local key points and obtained the strain waveforms of representative measuring points under the explosion stress wave. The characteristics of these strain waveforms were analyzed and the energy-based spectral analysis of these waveforms was done using Matlab. Findings show that both strain peak and stress rate peak are the biggest along the slot direction, followed by that along the non-slot direction, 135° direction and 45° direction in a descending order; the similar low-frequency band was detected at the measuring point with the same distance to the explosion source, while the high-frequency band was unevenly distributed. In the rock breaking experiment under the stress wave of slotted cartridge, with regards to the measuring points at the same distance to borehole, the similar low-frequency bands appeared and concentrated in 292.8-448Hz. The included angle between each measuring point and the slot was different, which impacted the propagation of stress wave to some extent and resulted in uneven distribution of the high-frequency bands.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - The Spatial and Temporal Distribution of Rock Breaking Effect of Explosion Stress Wave of Slotted Cartridge
AU  - Yanbing Wang
AU  - Bingbing Yu
AU  - Ji Kong
AU  - Maike Wang
Y1  - 2019/11/06
PY  - 2019
N1  - https://doi.org/10.11648/j.ajmie.20190405.12
DO  - 10.11648/j.ajmie.20190405.12
T2  - American Journal of Mechanical and Industrial Engineering
JF  - American Journal of Mechanical and Industrial Engineering
JO  - American Journal of Mechanical and Industrial Engineering
SP  - 76
EP  - 85
PB  - Science Publishing Group
SN  - 2575-6060
UR  - https://doi.org/10.11648/j.ajmie.20190405.12
AB  - The propagation characteristics and rock breaking mechanism of explosive stress wave have aroused the interests of many researchers. This work proposed a method that separates the explosion stress wave from detonation gas and designed the testing unit accordingly. It combined the resistance ultra-dynamic strain test to conduct the strain measurement on local key points and obtained the strain waveforms of representative measuring points under the explosion stress wave. The characteristics of these strain waveforms were analyzed and the energy-based spectral analysis of these waveforms was done using Matlab. Findings show that both strain peak and stress rate peak are the biggest along the slot direction, followed by that along the non-slot direction, 135° direction and 45° direction in a descending order; the similar low-frequency band was detected at the measuring point with the same distance to the explosion source, while the high-frequency band was unevenly distributed. In the rock breaking experiment under the stress wave of slotted cartridge, with regards to the measuring points at the same distance to borehole, the similar low-frequency bands appeared and concentrated in 292.8-448Hz. The included angle between each measuring point and the slot was different, which impacted the propagation of stress wave to some extent and resulted in uneven distribution of the high-frequency bands.
VL  - 4
IS  - 5
ER  -

Copy | Download