IMECH-IR  > 流固耦合系统力学重点实验室
Ultimate bearing capacity of a pipeline on clayey soils: Slip-line field solution and FEM simulation
Gao FP(高福平); Wang N(汪宁); Zhao B(赵波); Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
2013-11-15
发表期刊OCEAN ENGINEERING
卷号73页码:159-167
ISSN0029-8018
摘要The ultimate bearing capacity of a cylindrical foundation (e.g. a submarine pipeline, circular mooring lines) on clayey soils is analyzed analytically and numerically by employing the slip-line field theory and the plane-strain finite element method respectively. A slip-line field solution is presented, taking into account of circular configuration of the pipe, the pipe embedment, and the pipe–soil interfacial cohesion. The derived bearing capacity factors for a smooth rigid pipe may limit to those for the conventional rectangle-shaped strip footing while the pipe embedment is approaching zero. A plane-strain finite element model is further proposed to simulate the quasi-static process of the pipeline penetrating into the clay soil, in which the contact-pair algorithm and adaptive meshing technique are employed, and the Drucker–Prager constitutive model is used for modeling the soil plasticity. Comparison indicates that the present numerical results match well with the derived slip-line solutions. According to the obtained vertical load–displacement curves, concurrently referring to the plastic strain field and the soil incremental-displacement vector field, the shear failure types and the corresponding collapse loads can be thereby determined for the pipeline foundations on clayey soils.
关键词Collapse Loads Slip-line Field Theory Plane-strain Fem Collapse Loads Steel Catenary Riser Submarine Pipeline
学科领域岩体力学和土力学
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000326997700016
项目资助者This work was financially supported by the National Natural Science Foundation of China (Grantnos.11372319, 11232012) and the Major State Basic Research Development Program of China (973Program) (Grantno.2014CB046204).
课题组名称LMFS流固土耦合力学(LHO)
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/47507
专题流固耦合系统力学重点实验室
通讯作者Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
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Gao FP,Wang N,Zhao B,et al. Ultimate bearing capacity of a pipeline on clayey soils: Slip-line field solution and FEM simulation[J]. OCEAN ENGINEERING,2013,73:159-167.
APA Gao FP,Wang N,Zhao B,&Gao, FP .(2013).Ultimate bearing capacity of a pipeline on clayey soils: Slip-line field solution and FEM simulation.OCEAN ENGINEERING,73,159-167.
MLA Gao FP,et al."Ultimate bearing capacity of a pipeline on clayey soils: Slip-line field solution and FEM simulation".OCEAN ENGINEERING 73(2013):159-167.
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