The numerical study of wave-induced pore water pressure response in highly permeable seabed

This paper first describes the numerical implementation of the coupled formulation for the theory of consolidation of unsaturated soils. The developed computer code is verified using the Mandel-Cryer problem and then is applied to the solution of coupled multidimensional consolidation problems. Using a parametric study, it is demonstrated that, in unsaturated soils, the Mandel-Cryer effect is suppressed and the consolidation process in unsaturated soils is affected significantly by the shape of the soil-water characteristic curve. Finally, the developed model is used to analyze the consolidation of an unsaturated-saturated soil column. Analysis results indicate that the classical "undrained" pore-water pressure response to an externally applied load only occurs in the saturated zone while the pore-water pressure response is subdued in the unsaturated zone. This paper also shows a method of deriving one of the two additional material parameters required for the analysis of unsaturated soils from laboratory test results.Key words: coupled consolidation, unsaturated soils, Mandel-Cryer effect, soil-water characteristic curve.

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Prediction of pore-water pressure response to rainfall using support vector regression

Hydrogeology Journal ◽

10.1007/s10040-016-1429-4 ◽

2016 ◽

Vol 24 (7) ◽

pp. 1821-1833 ◽

Cited By ~ 3

Author(s):

Nuraddeen Muhammad Babangida ◽

Muhammad Raza Ul Mustafa ◽

Khamaruzaman Wan Yusuf ◽

Mohamed Hasnain Isa

Keyword(s):

Support Vector Regression ◽

Pore Water ◽

Pore Water Pressure ◽

Water Pressure ◽

Pressure Response ◽

Support Vector

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Wave-Induced Pore Water Pressure Accumulation in Marine Soils

Journal of Offshore Mechanics and Arctic Engineering ◽

10.1115/1.3257133 ◽

1989 ◽

Vol 111 (1) ◽

pp. 1-11 ◽

Cited By ~ 55

Author(s):

W. G. McDougal ◽

Y. T. Tsai ◽

P. L-F. Liu ◽

E. C. Clukey

Keyword(s):

Pore Water ◽

Pore Water Pressure ◽

Water Pressure ◽

Wave Induced

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An Experimental Study on the Wave-Induced Topographic Change in Artificial Shallows: Focusing on the Effects of Pore-Water Pressure on Sediment Transport

Coastal Engineering Journal ◽

10.1142/s0578563414500089 ◽

2014 ◽

Vol 56 (2) ◽

pp. 1450008-1-1450008-21 ◽

Cited By ~ 1

Author(s):

Tomoaki Nakamura ◽

Yuta Nezasa ◽

Yong-Hwan Cho ◽

Ryo Ishihara ◽

Norimi Mizutani

Keyword(s):

Experimental Study ◽

Sediment Transport ◽

Pore Water ◽

Pore Water Pressure ◽

Water Pressure ◽

Wave Induced

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Pore Water Pressure Response Around Pile and its Effects on P-Y behavior During Soil Liquefaction

SOILS AND FOUNDATIONS ◽

10.3208/sandf.44.6_101 ◽

2004 ◽

Vol 44 (6) ◽

pp. 101-110 ◽

Cited By ~ 41

Author(s):

Kohji Tokimatsu ◽

Hiroko Suzuki

Keyword(s):

Pore Water ◽

Pore Water Pressure ◽

Water Pressure ◽

Soil Liquefaction ◽

Pressure Response

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Numerical Study on Effects of the Embedded Monopile Foundation on Local Wave-Induced Porous Seabed Response

Mathematical Problems in Engineering ◽

10.1155/2015/184621 ◽

2015 ◽

Vol 2015 ◽

pp. 1-13 ◽

Cited By ~ 1

Author(s):

Chi Zhang ◽

Qingyang Zhang ◽

Zaitian Wu ◽

Jisheng Zhang ◽

Titi Sui ◽

...

Keyword(s):

Pore Water ◽

Pore Water Pressure ◽

Numerical Study ◽

Water Pressure ◽

Three Dimensional ◽

Navier Stokes ◽

Stokes Wave ◽

Local Concentration ◽

Soil Stress ◽

Local Wave

Effects of the embedded monopile foundation on the local distributions of pore water pressure, soil stresses, and liquefaction are investigated in this study using a three-dimensional integrated numerical model. The model is based on a Reynolds-Averaged Navier-Stokes wave module and a fully dynamic poroelastic seabed module and has been validated with the analytical solution and experimental data. Results show that, compared to the situation without an embedded foundation, the embedded monopile foundation increases and decreases the maximum pore water pressure in the seabed around and below the foundation, respectively. The embedded monopile foundation also significantly modifies the distributions of the maximum effective soil stress around the foundation and causes a local concentration of soil stress below the two lower corners of foundation. A parametric study reveals that the effects of embedded monopile foundation on pore water pressure increase as the degrees of saturation and soil permeability decrease. The embedded monopile foundation tends to decrease the liquefaction depth around the structure, and this effect is relatively more obvious for greater degrees of saturation, greater soil permeabilities, and smaller wave heights.

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