Experimental Study on the Dynamic Response of an Immersed Tunnel Element Moored inside the Harbor
-
Published:2023-07-21
Issue:14
Volume:13
Page:8456
-
ISSN:2076-3417
-
Container-title:Applied Sciences
-
language:en
-
Short-container-title:Applied Sciences
Author:
Ouyang Qunan1ORCID, Qi Chunfeng1, Sun Shipeng2, Yan Bing1, Pan Wenbo1, Huang Yuxin3, Ma Jiajie2
Affiliation:
1. Tianjin Research Institute for Water Transport Engineering, National Engineering Research Center of Port Hydraulic Construction Technology, Tianjin 300456, China 2. Guangzhou Salvage, Guangdong Engineering Technology Research Center of Ocean Engineering and Water Emergency Rescue, Guangzhou 510260, China 3. Institute of Water Science and Technology, Hohai University, Nanjing 210098, China
Abstract
Floating, pouring, prefabrication, and temporary storage of the immersed tunnel element require mooring inside a harbor or a dock. However, the dynamics of a moored tunnel element in such semi-open waters are rarely studied, and some mechanisms are not well understood yet. Clarifying the dynamic response characteristics of a tunnel element moored inside a harbor is useful for the evaluation and design of the mooring system. In this paper, by carrying out physical model tests, the law of wave development in the harbor was investigated, and the motion response of the tunnel element and cable force of the mooring system were also measured. Dynamic response characteristics under different environmental factors, the influence of tunnel element load conditions, and the mutual interference of multiple elements moored simultaneously were analyzed. The results show that dynamic response characteristics under wind are significantly different from those under waves. Under no-load or half-load conditions, which correspond to greater freeboard-to-draft ratios, the dynamic responses of the tunnel element are more unfavorable than those under heavy-load or full-load conditions. The scheme of simultaneous mooring of multiple elements inside a harbor is feasible if there is appropriate spacing between them.
Funder
R&D project in key areas of Guangdong Province National Key R&D Program of China Technology Project of Anhui Province Group Limited for Yangtze-to-Huaihe Water Diversion
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
Reference15 articles.
1. Experimental Study on Mooring, Towing and Installing of Immersed Tunnel Caissons;Xiao;J. Shanghai Jiaotong Univ. (Sci.),2010 2. Chen, K., Sheng, P., Wu, W., Li, T., and Xiong, A. (2021, January 20–25). Model Test of Immersed Tunnel Element in Towing Tank in Winds, Waves and Currents. Proceedings of the Twenty-Second International Offshore and Polar Engineering Conference, Rhodes, Greece. 3. Hydrodynamic experimental study on immersed tube tunnel element of Hong Kong-Zhuhai-Macao Bridge;Lv;China Civ. Eng. J.,2014 4. Hydrodynamic analysis of added resistance in waves of immersed tunnel elements during floating transportation;Lv;Port Waterw. Eng.,2011 5. Sheng, P., Wu, W., Chen, K., Xiong, A., and Xia, Z. (2012, January 1–6). Experimental Investigation on Element Immersing Process of Immersed Tube Tunnel of Hong Kong-Zhuhai-Macao Bridge. Proceedings of the ASME 31st International Conference on Ocean, Offshore and Arctic Engineering, Rio de Janeiro, Brazil.
|
|