|Table of Contents|

Citation:
　Shengjie Rui,Wenjie Zhou,Kanmin Shen,et al.Review on Seabed Trenches Induced by Mooring Lines and Analyses of Anchor Bearing Capacity[J].Journal of Marine Science and Application,2023,(2):296-310.[doi:10.1007/s11804-023-00333-x]
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Review on Seabed Trenches Induced by Mooring Lines and Analyses of Anchor Bearing Capacity

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Title:
Review on Seabed Trenches Induced by Mooring Lines and Analyses of Anchor Bearing Capacity
Author(s):
Shengjie Rui1; 3;  Wenjie Zhou1;  Kanmin Shen2;  Zhen Guo1
Affilations:
Author(s):
Shengjie Rui1; 3;  Wenjie Zhou1;  Kanmin Shen2;  Zhen Guo1
1 Key Laboratory of Offshore Geotechnics and Material of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China;
2 Key Laboratory of Far-shore Wind Power Technology of Zhejiang Province, PowerChina Huadong Engineering Corporation Limited, Hangzhou 311122, China;
3 Norwegian Geotechnical Institute, Sandakerveien 140, Oslo 0484, Norway
Keywords:
Seabed trench; Mooring line; Anchor; Bearing capacity; Interface shear
分类号:
-
DOI:
10.1007/s11804-023-00333-x
Abstract:
Mooring systems are usually adopted to position floating structures, including mooring lines and anchors, and directly determine the safety of floating structures. Seabed inspection reported that seabed trenches induced by mooring line-soil interaction appear in front of the anchor and reduce the anchor bearing capacity. This work first introduces the research progress of mooring line-soil interaction and seabed trenching simulation. Research about the suction anchor capacity in clay and sand is presented, and the seabed trench influence on anchor capacity is analyzed. For anchor analysis, this study gives a new perspective to analyze anchor installation and bearing capacity, i. e., structure-soil interface characteristic. Some common anchor types are analyzed. Results showed that seabed trench simulation is still needed to acquire trench 3D profiles, in which the mooring line-soil dynamic interaction cannot be ignored. At present, the trench influence is not considered in suction anchor design, making the design dangerous. For the anchor, the interface shear characteristics control the most unfavorable loading conditions. Thus, accurate interface parameters should be obtained for anchor analysis.

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Memo

Memo:
Received date:2022-06-15;Accepted date:2022-08-16。
Foundation item:The Finance Science and Technology Project of Hainan Province (ZDKJ202019), Key Research and Development Program of Zhejiang Province (2020C03012), National Natural Science Foundation of China (51779220), Natural Science Foundation of Zhejiang Province (LR22E080005, LHZ19E090003), the European Commission (HORIZON-MSCA-2022-PF-01, 101108745), the Research Council of Norway (SFI BLUES project, 309281), and Zhejiang Key Laboratory of Marine Geotechnical Engineering and Materials (OGME22001).
Corresponding author:Zhen Guo,E-mail:nehzoug@163.com
Last Update: 2023-06-02