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Article

Study on the Dynamic Responses of a Large Caisson during Wet-Towing Transportation

1
College of Harbor, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
2
School of Naval Architecture & Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
*
Author to whom correspondence should be addressed.
Water 2021, 13(2), 126; https://doi.org/10.3390/w13020126
Received: 24 November 2020 / Revised: 16 December 2020 / Accepted: 4 January 2021 / Published: 7 January 2021
(This article belongs to the Section Oceans and Coastal Zones)
Large caissons are extensively applied as deep-water foundations in marine engineering. In fact, caissons are generally prefabricated and transported to project site by wet towing. Motion responses of large caissons and those occurring during the towing process were investigated, and CO2 emissions under various conditions were calculated. These are all considered to ensure towing safety and environmental protection. The caisson resistance coefficient was simulated via Ansys Fluent software. The effects of towrope length, towing speed, and drift depth on the motion responses of caissons under the combined action of wind and wave were evaluated via Ansys AQWA software. Maximum heave value was dominantly affected by rope length and draft depth, and its fluctuation was highly influenced by towing speed and draft depth. However, all of the above mentioned factors had insignificant influences on pitch response. When towing existed, rope tension was rapidly increased from zero to a constant value that depended on towing speed and drift depth. However, the speed of achieving this stable phase depended on the length of the towrope. View Full-Text
Keywords: large caissons; wet-towing; stability; dynamic response; towrope tension large caissons; wet-towing; stability; dynamic response; towrope tension
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MDPI and ACS Style

Gu, H.; Wang, H.; Zhai, Q.; Feng, W.; Cao, J. Study on the Dynamic Responses of a Large Caisson during Wet-Towing Transportation. Water 2021, 13, 126. https://doi.org/10.3390/w13020126

AMA Style

Gu H, Wang H, Zhai Q, Feng W, Cao J. Study on the Dynamic Responses of a Large Caisson during Wet-Towing Transportation. Water. 2021; 13(2):126. https://doi.org/10.3390/w13020126

Chicago/Turabian Style

Gu, Haoyang, Huakun Wang, Qiu Zhai, Weibing Feng, and Jiaxiu Cao. 2021. "Study on the Dynamic Responses of a Large Caisson during Wet-Towing Transportation" Water 13, no. 2: 126. https://doi.org/10.3390/w13020126

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