Citation: | GAI Yuxin, LI Min. Buoyancy lifting scheme for marine risers in deep-sea mining system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(8): 1679-1686. doi: 10.13700/j.bh.1001-5965.2020.0240(in Chinese) |
With the consumption of modern industry, the limited land resources have been unable to support the sustainable development of human society in the future, so more and more attention has been paid to the exploitation of marine resources. Marine riser is a key component in deep-sea mining system, which connects mining ship on the sea surface and the mining car on the seabed. In order to avoid the long and soft lifting mine pipeline in the deep-sea operation to touch the seabed or tie up and other phenomena, which will affect the operation efficiency, buoyancy modules are usually used to lift the riser. Considering several design parameters of the buoyancy lifting modules layout, including the total lifting buoyancy, horizontal tension, number of buoyancy segments and the distribution length of buoyancy segments, the static configuration of the marine riser is evaluated by finite element method, and the general influence law of these parameters on the structure configuration is explored, so as to propose a reasonable buoyancy distribution scheme.
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