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Experimental Study on Water Hammer Wave and Seismic Wave Effect of CO2 Gas Explosion
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Huai-bin FAN1, 2, 3, Shao-feng LU1, 2, 3, Chong-xun MO4a, Cai-yong QIN1, 2, 3, Yue DIAO4b, Chao YANG5
Blasting | 2023, 40(4) : 154 - 160
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Blasting | 2023, 40(4): 154-160
• SPECIAL BLASTING •
Experimental Study on Water Hammer Wave and Seismic Wave Effect of CO2 Gas Explosion
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Huai-bin FAN1, 2, 3, Shao-feng LU1, 2, 3, Chong-xun MO4a, Cai-yong QIN1, 2, 3, Yue DIAO4b, Chao YANG5
Affiliations
  • 1.Guangxi New Harbour Engineering Co., Ltd., Nanning 530200, China
  • 2.Wang Xu-guang Academician Work Station, Guangxi New Harbour, Nanning 530200, China
  • 3.Reasearch Institution of Underwater Rock-Cutting Engineering at Guangxi Zhuang Municipality Region, Nanning 530200, China
  • 4a.School of Architecture and Civil Engineering, Guangxi University, Nanning 530004, China
  • 4b.College of Resources and Environment, Guangxi University, Nanning 530004, China
  • 5.College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
Published: 2023-12-01 doi: 10.3963/j.issn.1001-487X.2023.04.020
Outline
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In channel dredging engineering, the underwater drilling and blasting technology is often used for underwater reefs higher than the designed bottom elevation. However, after drilling and blasting, there are still some rocks that cannot be completely removed and irregular and unstable underwater shallow points remaining. In actual construction, emulsified explosive is often used to remove such isolated stones. Compared with drilling and blasting, adobe blasting has small contact surface between explosive and rock face, large amount of explosive, low energy utilization rate, high explosive consumption, large noise and water shock wave, affecting ecological environment and so on. In order to analyze the influencing factors of shallow blasting, field monitoring research was carried out to compare the adobe blasting underwater and the drilling & blasting method. Under the same effect, the water hammer wave and seismic wave data of CO2 adobe blasting, drilling CO2 gas blasting and drilling emulsion explosive blasting were obtained. In this paper, taking the foundation groove, berthing excavation, reef blasting and reef clearing project of 18#~22#berth wharf in Fangchenggang as examples, the arrangement and amount of charge are formulated according to the property of rock strata, rock formation, water depth and shallow point thickness of the blasted rock top. The results show that the overpressure of CO2 adobe explosion is 1.87~41.9 times that of CO2 drilling gas explosion under the same cylinder condition. The overpressure of underwater drilling emulsion explosive blasting is 7.9~18.7 times of the water shock wave of CO2 drilling gas explosion, and the vibration value is 3~10 times of the latter. Based on the research on the propagation law of underwater blast wave, this paper comprehensively analyzes the harmful effect of underwater shock wave.

underwater blasting  /  CO2 gas explosion  /  shallow point  /  water hammer wave  /  seismic wave
Huai-bin FAN, Shao-feng LU, Chong-xun MO, Cai-yong QIN, Yue DIAO, Chao YANG. Experimental Study on Water Hammer Wave and Seismic Wave Effect of CO2 Gas Explosion[J]. Blasting, 2023 , 40 (4) : 154 -160 . DOI: 10.3963/j.issn.1001-487X.2023.04.020
Funding
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  • The National Natural Science Foundation of China(51969004)
  • Guangxi Science and Technology Base and Talent Project(桂科AD20238084)
  • Guangxi Key R&D Plan(桂科AB22035001)
  • Key R&D Plan of Fangchenggang City(防科AB21014001; 防科AB20014013)
  • Key Science and Technology Projects in the Transportation Industry of Guangxi(桂交便函〔2022〕174号)
Appendix
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Year 2023 volume 40 Issue 4
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110
51
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Article Info
doi: 10.3963/j.issn.1001-487X.2023.04.020
  • Receive Date：2021-12-24
  • Online Date：2026-03-19
  • Published：2023-12-01
Article Data
Affiliations
History
  • Received：2021-12-24
Funding
The National Natural Science Foundation of China(51969004)
Guangxi Science and Technology Base and Talent Project(桂科AD20238084)
Guangxi Key R&D Plan(桂科AB22035001)
Key R&D Plan of Fangchenggang City(防科AB21014001; 防科AB20014013)
Key Science and Technology Projects in the Transportation Industry of Guangxi(桂交便函〔2022〕174号)
Affiliations
    1.Guangxi New Harbour Engineering Co., Ltd., Nanning 530200, China
    2.Wang Xu-guang Academician Work Station, Guangxi New Harbour, Nanning 530200, China
    3.Reasearch Institution of Underwater Rock-Cutting Engineering at Guangxi Zhuang Municipality Region, Nanning 530200, China
    4a.School of Architecture and Civil Engineering, Guangxi University, Nanning 530004, China
    4b.College of Resources and Environment, Guangxi University, Nanning 530004, China
    5.College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China

Corresponding:

MO Chong-xun (1974-), male, professor, Ph. D, mainly engaged in research on hydrology and water resources, (E-mail) .
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表12种不同金属材料的力学参数
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Family		 属数
Number of
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Number 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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