Seabed structures and foundations related to deep-sea resource development:A review based on design and research  

作　　者：Shengjie Rui Haojie Zhang Hang Xu Xing Zha Mengtao Xu Kanmin Shen 

机构地区：[1]Key Laboratory of Offshore Geotechnics and Material of Zhejiang Province,College of Civil Engineering and Architecture,Zhejiang University,Hangzhou,China [2]Advanced Modelling,Offshore Energy,Norwegian Geotechnical Institute,Oslo,Norway [3]Geotechnical Technology Center(Overseas Engineering Center),PowerChina Huadong Engineering Corporation Limited,Hangzhou,China

出　　处：《Deep Underground Science and Engineering》2024年第2期131-148,共18页深地科学（英文）

基　　金：Key Research and Development program of Zhejiang Province;Grant/Award Number:2018C03031;The Open Foundation of Key Laboratory of Offshore Geotechnical and Material Engineering of Zhejiang Province,Grant/Award Number:OGME21003;Natural Science Foundation of Zhejiang Province,Grant/Award Numbers:LHZ19E090003,LY15E090002;Norges Forskningsr?d,Grant/Award Number:OGME21003;National Natural Science Foundation of China,Grant/Award Numbers:51209183,51779220,52101334。

摘　　要：The deep‐sea ground contains a huge amount of energy and mineral resources,for example,oil,gas,and minerals.Various infrastructures such as floating structures,seabed structures,and foundations have been developed to exploit these resources.The seabed structures and foundations can be mainly classified into three types:subsea production structures,offshore pipelines,and anchors.This study reviewed the development,installation,and operation of these infrastructures,including their structures,design,installation,marine environment loads,and applications.On this basis,the research gaps and further research directions were explored through this literature review.First,different floating structures were briefly analyzed and reviewed to introduce the design requirements of the seabed structures and foundations.Second,the subsea production structures,including subsea manifolds and their foundations,were reviewed and discussed.Third,the basic characteristics and design methods of deep‐sea pipelines,including subsea pipelines and risers,were analyzed and reviewed.Finally,the installation and bearing capacity of deep‐sea subsea anchors and seabed trench influence on the anchor were reviewed.Through the review,it was found that marine environment conditions are the key inputs for any offshore structure design.The fabrication,installation,and operation of infrastructures should carefully consider the marine loads and geological conditions.Different structures have their own mechanical problems.The fatigue and stability of pipelines mainly depend on the soil‐structure interaction.Anchor selection should consider soil types and possible trench formation.These focuses and research gaps can provide a helpful guide on further research,installation,and operation of deep‐sea structures and foundations.

关 键 词：ANCHORS floating structures pipelines RISERS subsea foundations 

分 类 号：P75[天文地球—海洋科学]