IMECH-IR  > 流固耦合系统力学重点实验室
Accumulation of Pore Pressure in a Soft Clay Seabed around a Suction Anchor Subjected to Cyclic Loads
Li H1; Chen XG1; Hu C(胡存)2; Wang SQ1; Liu JZ3
Source PublicationJOURNAL OF MARINE SCIENCE AND ENGINEERING
2019-09-01
Volume7Issue:9Pages:21
ISSN2077-1312
Abstract

A suction anchor is an appealing anchoring solution for floating production. However, the possible effects of residual pore pressure can be rarely found any report so far in term of the research and design. In this study, the residual pore pressure distribution characteristics around the suction anchor subjected to vertical cyclic loads are investigated in a soft clay seabed, and a three-dimensional damage-dependent bounding surface model is also proposed. This model adopts the combined isotropic-kinematic hardening rule to achieve isotropic hardening and kinematic hardening of the boundary surface. The proposed model is validated against triaxial tests on anisotropically consolidated saturated clays and normally consolidated saturated clays. The analytical results show that the excess pore water pressure accumulates primarily on the outside of the suction anchor, whereas negative pore water pressure mainly on the inside. The maximum values of both sides appear in the lower part of the seabed. According to the distribution characteristics of the residual pore pressure, a perforated anchor is proposed to reduce the accumulation of excess pore water pressure. A comparative study generally shows that the perforated anchor can effectively reduce the accumulation of excess pore water pressure.

Keywordsoft clay cyclic loads residual pore pressure suction anchor
DOI10.3390/jmse7090308
Indexed BySCI
Language英语
WOS IDWOS:000487981700016
WOS KeywordPLASTICITY MODEL ; FIELD-TESTS ; BEHAVIOR ; WAVE
WOS Research AreaOceanography
WOS SubjectOceanography
Funding ProjectNational Natural Science Foundation of China[51379196] ; Taishan Scholars Program of Shandong Province[TS201511016] ; Young Elite Scientist Sponsorship Program by Cast[2016QNRC001] ; [51625902]
Funding OrganizationNational Natural Science Foundation of China ; Taishan Scholars Program of Shandong Province ; Young Elite Scientist Sponsorship Program by Cast
ClassificationQ3
Ranking3
ContributorChen, Xuguang
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80625
Collection流固耦合系统力学重点实验室
Affiliation1.Ocean Univ China, Shandong Prov Key Lab Ocean Engn, Qingdao 266100, Shandong, Peoples R China;
2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China;
3.Hohai Univ, Key Lab, Minist Educ Geomech & Embankment Engn, Nanjing 210098, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Li H,Chen XG,Hu C,et al. Accumulation of Pore Pressure in a Soft Clay Seabed around a Suction Anchor Subjected to Cyclic Loads[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2019,7(9):21.
APA Li H,Chen XG,Hu C,Wang SQ,&Liu JZ.(2019).Accumulation of Pore Pressure in a Soft Clay Seabed around a Suction Anchor Subjected to Cyclic Loads.JOURNAL OF MARINE SCIENCE AND ENGINEERING,7(9),21.
MLA Li H,et al."Accumulation of Pore Pressure in a Soft Clay Seabed around a Suction Anchor Subjected to Cyclic Loads".JOURNAL OF MARINE SCIENCE AND ENGINEERING 7.9(2019):21.
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