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Surge Wave Properties Induced by Underwater Blasting in Water Diversion Engineering
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Yi-qi LIU1, Zi-yong CAI1, 2, Shi-fan QIAO1, Peng-kun YU1
Blasting | 2023, 40(4) : 132 - 141
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Blasting | 2023, 40(4): 132-141
• SPECIAL BLASTING •
Surge Wave Properties Induced by Underwater Blasting in Water Diversion Engineering
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Yi-qi LIU1, Zi-yong CAI1, 2, Shi-fan QIAO1, Peng-kun YU1
Affiliations
  • 1.School of Civil Engineering, Central South University, Changsha 410075, China
  • 2.Sino-Hunan Overseas Engineering and Development Co., Ltd., Changsha 410004, China
Published: 2023-12-01 doi: 10.3963/j.issn.1001-487X.2023.04.018
Outline
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In order to further study the propagation characteristics of surge wave induced by underwater blasting loads, the multi-physical field coupling simulation method powered by the dynamic analysis software COMSOL was adopted to establish a transient solution model based on the second water source project-diversion project of Guilin City. The isosurface, peak stress and vibration velocity of surge wave under explosion load were studied and evaluated based on field monitoring results. The results show that the surge wave produced by underwater blasting essentially propagates around the center of the blast center, and the surge isosurface evolves from regular round to irregular ellipsoid with time. The surge waves decay rapidly during propagation, and with the increase of water medium velocity threshold, the influence range of surge wave action region is small. In addition, the stress of the surge wave has superposition effect under the condition of delayed blasting, and thus there are multiple peaks. When the distance to blast center increases from 28 m to 108 m, the attenuation rate of the peak vibration velocity of the surge wave reaches 96.3%, which has little effect on the structure. Meanwhile, the time of the peak velocity of the surge wave increases gradually with the increase of the distance to blast center.

underwater blasting  /  numerical simulation  /  field tests  /  blasting vibration  /  dynamic characteristics
Yi-qi LIU, Zi-yong CAI, Shi-fan QIAO, Peng-kun YU. Surge Wave Properties Induced by Underwater Blasting in Water Diversion Engineering[J]. Blasting, 2023 , 40 (4) : 132 -141 . DOI: 10.3963/j.issn.1001-487X.2023.04.018
Funding
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  • National Natural Science Foundation of China(51878673)
  • Science and Technology Planning Project of Hunan Construction Engineering Group(JGJTK2021-24; JGJTK2019-06; JGJTK2019-12)
  • Key topics of the science and technology research and devel opment plan of China Railway Corporation(2017G007-D; 2017G008-J)
  • Key project of science and technology research and development plan of China Railway Group Co., Ltd.(20192001)
Appendix
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Year 2023 volume 40 Issue 4
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82
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Article Info
doi: 10.3963/j.issn.1001-487X.2023.04.018
  • Receive Date：2022-12-20
  • Online Date：2026-03-19
  • Published：2023-12-01
Article Data
Affiliations
History
  • Received：2022-12-20
Funding
National Natural Science Foundation of China(51878673)
Science and Technology Planning Project of Hunan Construction Engineering Group(JGJTK2021-24; JGJTK2019-06; JGJTK2019-12)
Key topics of the science and technology research and devel opment plan of China Railway Corporation(2017G007-D; 2017G008-J)
Key project of science and technology research and development plan of China Railway Group Co., Ltd.(20192001)
Affiliations
    1.School of Civil Engineering, Central South University, Changsha 410075, China
    2.Sino-Hunan Overseas Engineering and Development Co., Ltd., Changsha 410004, China

Corresponding:

QIAO Shi-fan (1975-), male, professor, doctoral supervisor, mainly engaged in teaching and research on the geotechnical environmental effects and control of subway shield tunneling construction, (E-mail) .
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