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Numerical Study on Plume Resuspension Characteristics Under Shear Action of Deep-Sea Sediments
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Kaihui LI1, 2, Bingzheng CHEN1, 3, Yuxiang MA2, Min JIANG1, 3
Mining Research and Development | 2026, 46(1) : 10 - 18
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Mining Research and Development | 2026, 46(1): 10-18
Numerical Study on Plume Resuspension Characteristics Under Shear Action of Deep-Sea Sediments
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Kaihui LI1, 2, Bingzheng CHEN1, 3, Yuxiang MA2, Min JIANG1, 3
Affiliations
  • 1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
  • 2.School of Infrastructure Engineering, Dalian University of Technology, Dalian, Liaoning 116000, China
  • 3.National Engineering Research Center for Metal Mining, Changsha, Hunan 410012, China
Published: 2026-01-25
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Sediment plumes generated during the mining of polymetallic nodules have a significant impact on the seabed ecosystem. To explore the sediment resuspension and dispersion phenomena under the shear disturbance of mining vehicles, a simulation study was conducted based on a finite element analysis of Eulerian model. The plume dispersion under different roller velocities (0.1-0.9 m/s) and indentation depths (33 cm and 18 cm) was analyzed, and the effectiveness of plume shields was evaluated. Results indicate that when the roller velocity exceeds 0.3 m/s, the plume size and height significantly increase, with the maximum plume height reaching 1.4 m. As reducing the indentation depth, the average plume diffusion velocity and plume size noticeably decreases. Additionally, with the addition of a plume shield, the plume size reduces by about 51%, plume height decreases by 25%, and diffusion tendency reduces to 46%, indicating that the plume suppression devices such as shields can effectively mitigate the plume. The study can provide a reference for controlling plumes in the mining of deep-sea polymetallic nodules.

Deep-sea environment  /  Deep-sea mining  /  Polymetallic nodules  /  Sediment plume  /  Eulerian model
李凯辉, 陈秉正, 马玉祥, 江敏. 深海沉积物剪切作用下羽流激发特性的数值研究. 矿业研究与开发, 2026 , 46 (1) : 10 -18 .
Kaihui LI, Bingzheng CHEN, Yuxiang MA, Min JIANG. Numerical Study on Plume Resuspension Characteristics Under Shear Action of Deep-Sea Sediments[J]. Mining Research and Development, 2026 , 46 (1) : 10 -18 .
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Year 2026 volume 46 Issue 1
47
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Article Info
  • Receive Date：2024-11-14
  • Online Date：2026-10-29
  • Published：2026-01-25
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  • Received：2024-11-14
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Affiliations
    1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
    2.School of Infrastructure Engineering, Dalian University of Technology, Dalian, Liaoning 116000, China
    3.National Engineering Research Center for Metal Mining, Changsha, Hunan 410012, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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