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Keywords: pore pressure
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Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-019
... soil permeability on the wave-induced pore pressure and effective stresses. INTRODUCTION In the past a few decades, considerable efforts have been devoted to the phenomenon of the wave-soil interactions. One of the major reason is that the evaluation of the wave-induced soil response and its...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-021
... of wave obliquity on the wave-induced pore pressures and the resultant seabed liquefaction around the pipeline, which cannot be observed in 2-D numerical simulation. INTRODUCTION Nowadays, many offshore structures have been commonly constructed over the last few decades due to the growing engineering...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-016
..., partial dynamic approximation (u-p approximation) will be used, and three different types of natural loading will be considered, i.e., wave, current and earthquake loading. KEY WORDS: Meshfree method; pore pressure; effective stress; seabed INTRODUCTION In the last twenty years, more and more marine...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-022
... loading submerged breakwater soil model artificial intelligence effective normal stress interaction liquefaction potential liquefaction submerged permeable breakwater pore pressure shear stress breakwater numerical model upstream oil & gas bragg effect reservoir...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-017
... in the present due to various uncertain factors. The cyclic dynamic load which is produced by wave and current propagation on the seabed surface will cause the fluctuation and accumulation of pore water pressure. When the pore pressure extreme growth, the effective stress will decrease, which will lead...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-018
... saturation machine learning soil displacement engineering vicinity analytical solution offshore pipeline pore pressure liu trench layer ocean engineering equation boundary condition upstream oil & gas permeability artificial intelligence jeng wave-induced soil response...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-163
... distribution pattern of pore pressure by changing the wave shapes. Introduction Wave-induced porous seabed response plays an important role in the mechanism of seabed instability around marine structures. Distribution of pore pressure in the seabed is mostly concerned as it may cause destruction of surface...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-086
... the influence of clay content (CC) on wave-induced liquefaction. It has been confirmed that the deposit will become prone to liquefaction with the increase of CC, while when CC up to 30%, the mixture sand-clay deposit will almost never liquefied. maximum amplitude wave height pore pressure wave...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-087
... Abstract The evaluation of wave-induced excess pore pressure in the vicinity of marine structures is one of the key factors for coastal engineers involved in the design of foundation for the structures. Unlike previous models, the effect of outer shape of sloping seabed and breakwater...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-084
... Abstract The wave-induced pore pressure is a key factor in the prediction of the wave-induced liquefaction potential, which has been reported in the literature in conjunction with marine engineering (Sumer and Fredsøe, 2002). Most previous investigations for the wave-induced soil response have...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-101
... Abstract A finite element model for the pore pressure responses under the action of combined waves and current is proposed and verified with the existing experimental data. In this numerical model, both transient and residual pore pressure responses are simulated simultaneously. The numerical...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-085
... of the present integrated model is presented first. Then the effect of currents on the seabed response is examined by considering both the oscillatory and residual mechanisms of the pore pressure inside the soil. A parametric study is conducted to examine the characteristics of the poro-elastoplastic model here...
Proceedings Papers

Paper presented at the The Tenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 3–5, 2012
Paper Number: ISOPE-P-12-055
... ABSTRACT: When tides flow over the ocean floor, they exert dynamic pressure on the porous seabed, and consequently result in oscillatory pore pressure and seepage in the seabed. Stability of the large-diameter pipelines under construction immersed in the seabed may be influenced by the excess...
Proceedings Papers

Paper presented at the The Seventh ISOPE Pacific/Asia Offshore Mechanics Symposium, September 17–21, 2006
Paper Number: ISOPE-P-06-017
... variable shear modulus lizhong wang civil engineering effective stress coefficient jeng engineering upstream oil & gas wave-induced response wave-induced pore pressure displacement variable shear modulus dongzi pan college transient response pore pressure harmonic response Wave...
Proceedings Papers

Paper presented at the The Seventh ISOPE Pacific/Asia Offshore Mechanics Symposium, September 17–21, 2006
Paper Number: ISOPE-P-06-044
... from wave theory. test case reservoir simulation fluid dynamics excessive pore pressure solver pore pressure numerical model engineering reservoir characterization equation upstream oil & gas numerical scheme boundary condition consolidation equation displacement biot...
Proceedings Papers

Paper presented at the The Seventh ISOPE Pacific/Asia Offshore Mechanics Symposium, September 17–21, 2006
Paper Number: ISOPE-P-06-034
... the wave-induced pore pressure and stresses in marine sediment. The new boundary value problem was solved by the Legendre pseudo-spectral method numerically. Based on the new model, we investigate the effects of soil permeability, seabed bottom function on the pore pressures and vertical effective normal...

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