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Study on Influence of Vibration-reduction Holes on Blast Vibration Mitigation in Underwater Blasting
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Jia-wei WAN1, Dong-wang ZHONG1, 2, Shun-xiang XU1, Li HE1, 2, Teng-fei LI1, Hao-hao TAO1, Han GAO1, Xiao-xiao XU1
Blasting | 2025, 42(2) : 158 - 166
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Blasting | 2025, 42(2): 158-166
• BLASTING SAFETY •
Study on Influence of Vibration-reduction Holes on Blast Vibration Mitigation in Underwater Blasting
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Jia-wei WAN1, Dong-wang ZHONG1, 2, Shun-xiang XU1, Li HE1, 2, Teng-fei LI1, Hao-hao TAO1, Han GAO1, Xiao-xiao XU1
Affiliations
  • 1.College of Science, Wuhan University of Science and Technology, Wuhan 430065, China
  • 2.Hubei Province Intelligent Blasting Engineering Technology Research Center, Wuhan 430065, China
Published: 2025-06-01 doi: 10.3963/j.issn.1001-487X.2025.02.019
Outline
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Underwater blasting vibration poses significant challenges in mining engineering applications, particularly channel dredging, seaport, and bridge construction. This study investigates the vibration attenuation mechanism and propagation characteristics through damping borehole configurations. The attenuation law of underwater blasting damping holes was studied, and a comprehensive experimental program to analyze the blasting vibration signals and piezoelectric signals was conducted by comparing three scenarios: conventional blasting without damping measures, water-coupled damping holes, and air-coupled damping holes. The optimized borehole parameters included a 2 cm diameter, 5 cm spacing, 4 cm row spacing, and 17 cm depth, positioned 20 cm from the explosive source. Experimental results demonstrated that using underwater blasting damping holes can effectively reduce the peak vibration velocity of blasting. The average damping rate of water-coupled damping holes and air-coupled damping holes is 17.5% and 27.2%, respectively. Time domain analysis revealed a consistent correlation between piezoelectric signals and the peak vibration velocity. The damping mechanism primarily affected vertical vibration components, with effectiveness positively correlated with charge weight. Field validation tests confirmed an 18.1% vibration reduction, establishing the practical efficacy of the proposed damping borehole array.

underwater blasting  /  underwater vibration-reduction holes  /  vibration response  /  piezoelectric signal  /  vibration control
Jia-wei WAN, Dong-wang ZHONG, Shun-xiang XU, Li HE, Teng-fei LI, Hao-hao TAO, Han GAO, Xiao-xiao XU. Study on Influence of Vibration-reduction Holes on Blast Vibration Mitigation in Underwater Blasting[J]. Blasting, 2025 , 42 (2) : 158 -166 . DOI: 10.3963/j.issn.1001-487X.2025.02.019
Funding
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  • National Natural Science Foundation of China(52274136)
  • National Natural Science Foundation of China(51904210)
Appendix
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Year 2025 volume 42 Issue 2
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116
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Article Info
doi: 10.3963/j.issn.1001-487X.2025.02.019
  • Receive Date：2024-11-11
  • Online Date：2026-03-19
  • Published：2025-06-01
Article Data
Affiliations
History
  • Received：2024-11-11
Funding
National Natural Science Foundation of China(52274136)
National Natural Science Foundation of China(51904210)
Affiliations
    1.College of Science, Wuhan University of Science and Technology, Wuhan 430065, China
    2.Hubei Province Intelligent Blasting Engineering Technology Research Center, Wuhan 430065, China

Corresponding:

XU Shun-xiang (1970-), female, master degree, associate professor, mainly engaged in the research and development of safety engineering and blasting technology, (E-mail).
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
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Number of
species		 占总种数比例
Percentage of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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