LAPSE:2023.27155
Published Article
LAPSE:2023.27155
Experimental Study on Blasting Energy Distribution and Utilization Efficiency Using Water Jet Test
April 4, 2023
Abstract
The blasting stress wave and blasting gas generated by explosive blasting are the two main motive powers of rock fragmentation. An experimental method based on water jet test is used to study the energy distribution ratio of blasting stress wave and blasting gas; the utilization efficiency of blasting energy under different borehole constraint conditions is also analyzed. It proves that the blasting stress wave does not cause the water jet, and the blasting gas is the only power of the water column jet. The results show that the energy of the blasting gas and blasting stress wave respectively account for about 64% and 36% of the total energy generated by the explosion of lead azide. The utilization efficiency of the blasting gas energy under strong, medium, and weak constraint conditions is 100%, 80%, and 52%, respectively. The borehole constraint condition is crucial for the effective utilization of blasting energy.
The blasting stress wave and blasting gas generated by explosive blasting are the two main motive powers of rock fragmentation. An experimental method based on water jet test is used to study the energy distribution ratio of blasting stress wave and blasting gas; the utilization efficiency of blasting energy under different borehole constraint conditions is also analyzed. It proves that the blasting stress wave does not cause the water jet, and the blasting gas is the only power of the water column jet. The results show that the energy of the blasting gas and blasting stress wave respectively account for about 64% and 36% of the total energy generated by the explosion of lead azide. The utilization efficiency of the blasting gas energy under strong, medium, and weak constraint conditions is 100%, 80%, and 52%, respectively. The borehole constraint condition is crucial for the effective utilization of blasting energy.
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Keywords
blasting gas, blasting stress wave, borehole constraint, utilization efficiency, water jet
Subject
Suggested Citation
Ding C, Yang R, Lei Z, Chen C, Zheng C. Experimental Study on Blasting Energy Distribution and Utilization Efficiency Using Water Jet Test. (2023). LAPSE:2023.27155
Author Affiliations
Ding C: School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
Yang R: School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China; State Key Laboratory for Geomechanics and Deep Underground Engineering, Beijing 100083, China
Lei Z: Institute of Mining Engineering, Guizhou Institute of Technology, Guizhou 550003, China
Chen C: School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
Zheng C: State Key Laboratory for Geomechanics and Deep Underground Engineering, Beijing 100083, China
Yang R: School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China; State Key Laboratory for Geomechanics and Deep Underground Engineering, Beijing 100083, China
Lei Z: Institute of Mining Engineering, Guizhou Institute of Technology, Guizhou 550003, China
Chen C: School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
Zheng C: State Key Laboratory for Geomechanics and Deep Underground Engineering, Beijing 100083, China
Journal Name
Energies
Volume
13
Issue
20
Article Number
E5340
Year
2020
Publication Date
2020-10-14
ISSN
1996-1073
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Original Submission
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PII: en13205340, Publication Type: Technical report
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LAPSE:2023.27155
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https://doi.org/10.3390/en13205340
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Apr 4, 2023
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