Dimensionless analysis on peak particle vibration velocity induced by slope casting blast

ZHOU Wenhai; LIANG Rui; YU Jianping; DU Chaofei; WANG Dunfan; LOU Xiaoming

doi:10.11883/bzycj-2017-0373

Volume 39 Issue 5

May 2019

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Article Navigation > Explosion And Shock Waves > 2019 > 39(5): 054201

ZHOU Wenhai, LIANG Rui, YU Jianping, DU Chaofei, WANG Dunfan, LOU Xiaoming. Dimensionless analysis on peak particle vibration velocity induced by slope casting blast[J]. Explosion And Shock Waves, 2019, 39(5): 054201. doi: 10.11883/bzycj-2017-0373

Citation:

ZHOU Wenhai, LIANG Rui, YU Jianping, DU Chaofei, WANG Dunfan, LOU Xiaoming. Dimensionless analysis on peak particle vibration velocity induced by slope casting blast[J]. Explosion And Shock Waves, 2019, 39(5): 054201. doi: 10.11883/bzycj-2017-0373

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Dimensionless analysis on peak particle vibration velocity induced by slope casting blast

doi: 10.11883/bzycj-2017-0373

1.
School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
2.
Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
3.
Institute of Explosive Technology, Fuzhou University, Fuzhou 350116, Fujian, China

Received Date: 2017-10-17
Rev Recd Date: 2017-12-17
Publish Date: 2019-05-01

Abstract

Abstract

To study the surface particle vibration of vibration wave propagation on slope casting blast, we utilize dimensional analysis to construct the vibration peak velocity formula including the factor of elevation. On the basis of the above theory and slope casting blast model, we divide a blasthole charge into sumless micro-units for integral operation, and eventually obtain the formula of particle vibration peak velocity on slope casting blast. The results show that under the same condition of geographical environment and blasting technology, peak velocity primarily depends on explosive performance, charge depth, monitoring point, explosion source space and blasting acting index. We obtain a series of peak velocity on explosion site, and put the measured data at the slope surface and in the slope body into the Saudorsky formula, the average errors between the predicted peak velocity values by the formulas and the measured values at the slope surface are 32%, 34.25%, 29.58%, 39% and 7%, respectively. The average errors between the predicted peak velocity values by the formulas and the measured values in the slope body are 27.63%, 23.5%, 16.88%, 33.889% and 13.25%, respectively.
- dimensional analysis,
- casting blast,
- peak velocity,
- elevation amplification effect

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References(19)

References

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