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Keywords: pore water pressure
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Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-727
... and inhibit the increasing excess pore water pressure of soil near the piles. However, the installation of steel piles incurs high material cost. As many retaining walls require countermeasures and the existing methods are too expensive for implementation, the author proposes the use of a low-rigidity...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-138
... trench seabed surface clay content experiment wave height pore water pressure clayey soil interaction mixed bed accumulation reservoir characterization pore pressure wave-seabed interaction engineering liquefaction net upward pressure gradient upstream oil & gas...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-155
... and is a pliable and mutually bonded three-dimensional net-shaped body of water permeable material. settlement liquefaction engineering upstream oil & gas rotary penetration machine liquefaction countermeasure pore water pressure experiment drain pipe countermeasure yashima deformation time...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-695
...), and the Southern Willamette Valley has thinner Missoula Flood deposits (less than 10 m). The Missoula Flood deposits "pinch out" around Eugene, Oregon. liquefaction potential liquefaction undisturbed sample valley soil abba abdollahi aecom pore water pressure specimen pore water pressure ratio soil...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-530
..., the displacement of the pipe bend, the lateral resistive force, the excess pore water pressures around the pipe, and the acceleration responses were recorded. The resistance acting on the pipe bend was measured by the load cell which was placed between the pipe bend and a loading shaft. Both sides of the pipe bend...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-327
... results indicate that the wave characteristics as well as the configurations of a group of piled foundation can significantly affect the oscillatory pore-water pressures in the seabed. INTRODUCTION Piled foundations have been commonly used to support various offshore infrastructures such as platforms...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-317
... of the fluctuation of pore water pressure for soil water characteristic curve was developed. The results obtained from this study demonstrate that the slope stability of landslides is strongly dependent on the hydraulic conductivity. It is found that the variation of pore water pressure in unsaturated layered...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-426
... dynamic response fluid dynamics pore pressure rubble port reservoir characterization formulation variation breakwater seabed permeability upstream oil & gas displacement wave period pore water pressure caisson type gravity quay wall qs 0 flow in porous media quay wall Analysis...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-393
... grain size accumulation curve engineering characteristic silica sand 5 pore water pressure groutability ratio liquefaction resistance specimen unimproved sand liquefaction strength property sand skeleton sand specimen axial strain cohesion skeleton microparticle strength...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-502
... by the pore water pressure/effective stress behavior and the rearrangement of soil particles caused by the tube penetration during sampling. Up to now, no sufficiently demonstrative research has been conducted on this issue despite the information that elucidates the nature of sample disturbance. Baligh, et...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-811
... settlement water pressure gal pore water pressure excess pore water pressure caisson foundation earthquake unreinforced foundation sheet pile earthquake loading horizontal displacement gabion Stability of Breakwater Foundation Reinforced with Steel Sheet Piles under Dynamic Loading Babloo...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-202
... Abstract Slope failure accounts for the majority of sediment disasters due to heavy rain. Both occurrence of seepage flow and pore water pressure in the infinitely long earth slopes are well known causes of slope failure. However, a slope failure could occur in case where the soils in slope...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-353
... finite difference method (FDM) and three major factors (pore water pressure, effective vertical stress and shear stress) are outputted from the models as major analysis target. The result shows that both liquefaction and shear failure have low potential to occur in clayey seabed, this may caused...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-053
... area are divided to verify zones locations after a disaster. It was found that the length of the depositional area is shorter than expected. Hence, the excess pore water pressure between the debris flow and the bedrock could be a significant factor to cause the debris flow. In this paper, we present...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-226
... ABSTRACT: This paper summarizes the results of an experimental study directed towards the validation of a mathematical model for the buildup of pore water pressure and resulting liquefaction of marine soils under progressive waves. Experiments were conducted under controlled conditions...
Proceedings Papers

Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-068
...), with experimental works by Lee and Albaisa (1974), can be used to illustrate the settlement ratio versus the excess pore water pressure ratio for various time factors. These figures can be used to illustrate when calculating settlements. In order to investigate the best layout for gravel drain, a series of shake...
Proceedings Papers

Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-423
... analysis pore water pressure penetration depth hammer dissipation friction resistance engineering blow count soil strength soil fatigue sensitivity soil resistance skin friction Offshore Pile Drivability Analysis Based on Changing Soil Structure Strength Tao Yao, Xiaogang Yang, Xiaowei...
Proceedings Papers

Paper presented at the The Nineteenth International Offshore and Polar Engineering Conference, July 21–26, 2009
Paper Number: ISOPE-I-09-139
..., unloaded to 100kPa for OCR=4 and unloaded to 50kPa for OCR=8 in overconsolidation before shearing. In CIU-NC tests, deviator stresses of normally consolidated clayey silt were observed softening tendency with increasing dilatancy and lowcohesion after failure. Peak pore water pressures decreased under...
Proceedings Papers

Paper presented at the The Nineteenth International Offshore and Polar Engineering Conference, July 21–26, 2009
Paper Number: ISOPE-I-09-364
... liquefaction is still insufficient. liquefaction subgrade reaction specimen time history positive dilatancy pore water pressure viscosity coefficient kpa towhata effective stress upstream oil & gas displacement low effective stress strain rate subsidence reservoir characterization...
Proceedings Papers

Paper presented at the The Eighteenth International Offshore and Polar Engineering Conference, July 6–11, 2008
Paper Number: ISOPE-I-08-049
... ABSTRACT In this study, the field monitoring of the pore water pressure of the seabed soil under the wave action is investigated. From the coastal geotechnical engineering viewpoint, the wave-induced pore water pressure of seabed under irregular wave action and wave height in-situ were...

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