... the extraction resistance of the spudcan. It is crucial to predict Qbreakout. Craig (1990) conducted some tests on spudcan extraction, which clearly indicated the importance of base suction upon spudcan extraction particularly in soft clay. It was also noted Purwana et al. 2005) that the base suction...

... of adsorption area using small UVGs in order to expand the suction area. After a study of the design and the results of adsorption experiments in a water tank, the results of adsorption in a real sea area are presented. INTRODUCTION In Japan, more than 50 years have passed since the period of high economic...

... piping simulation experiment subsidence effective stress plaxis aukenthaler & grimstad permafrost constitutive model ghoreishian compression test suction soil model settlement deformation Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference...

... landslide instantaneous velocity modeling debris suction submarine landslide plastic shear strain engineering upstream oil & gas randolph drag force shear strength undrained shear strength Effects of Seabed Shear Strength and Gap between Pipeline and Seabed on Drag Force on Suspended...

... Mechanism and Prediction of Spudcan Extraction Resistance Due to Base Suction Pan Gao1, Menglan Duan2, Ji Zeng1, Jianbo Li3 1. College of Ocean Science and Engineering, Shanghai Maritime University. Shanghai, China 2. Institute for Ocean Engineering, China University of Petroleum, Beijing. Beijing...

... ABSTRACT Suction Embedded Plate Anchors (SEPLA) have been used as an economical and efficient foundation system in deep waters in support of offshore oil and gas energy development. These anchoring elements are also being considered for support of the Marine Hydrokinetics devices deployment...

... Abstract Research has proven the bucket foundation to be a feasible and an attractive solution for offshore wind turbines. Its potential derives partly from the cost-effectiveness due to the suction-assisted installation. The suction applied under the bucket lid produces a downward driving...

... Abstract Case history on the penetration of suction foundation is demonstrated in the paper. A procedure to estimate the lower critical suction for the penetration of foundation as well as the upper critical suction against boiling or heaving is presented. Field data on the suction...

... could be successfully simulated in CFX modeling. It is shown that the suction develops behind the pipe plays a significant role on calculated lateral resistance. The development of lateral resistance with penetration could be simulated better using ANSYS CFX. The calculated maximum resistance compares...

... displacement displacement kpa reservoir characterization fluid dynamics water flow contour schrefler suction semi-saturated condition impact area deformable porous media reservoir geomechanics upstream oil & gas airflow pore pressure Numerical Study of Dynamic Soil Compaction at Different...

... slope failure infiltration water behavior model slope infiltrate reservoir simulation tensiometer model experiment suction full scale model experiment rainwater water pressure pore water pressure consideration low permeable layer experiment Consideration of Seepage of Rainwater...

... strength suction sampler Sampling Tube Influence on Clay Sample Quality Takaharu Shogaki, Takahiro Yoshizu and Susumu Arai National Defense Academy Yokosuka, Japan Yoshihiko Tsusaka and Masami Hattori Aoi Tech Co. Ltd. Nagoya, Japan ABSTRACT Undisturbed tube sampling methods were established in 1995...

... pressure compared to only considering mode 1. KEY WORDS: Wind turbines; suction caisson; foundation; buckling. INTRODUCTION About one third of the total cost of an offshore wind farm is related to the expenses for the foundations. For wind turbines located on deeper water, the cost of the foundations might...

... The subject of this seakeeping study is a self-installing offshore platform - the Mobile Offshore Application Barge (MOAB®). The MOAB® is a floating pontoon which is coupled with a foundation structure. The lower part of the foundation structure is arranged with suction cans. The suction cans...

... ABSTRACT: Hydraulic experiments and field data show that the destruction of coastal levees and revetments are mainly caused by the suction of water which returning waves move over the area. Repeated wave attacks reduce the front sand beach, decreasing shear resistance at the foundation...

... the spudcan extraction is to use a jetting system at the invert of the spudcan to break the suction generated during the extraction and hence to reduce the extraction resistance. The feasibility and the performance of such a jetting system have been investigated in a geotechnical centrifuge. At 200g...

...The Lie-Group Shooting Method for Multiple-Solutions of Falkner-Skan Equation under Suction-Injection Conditions Chein-Shan Liu Department of Mechanical and Mechatronic Engineering, Taiwan Ocean University, Keelung, Jiang-Ren Chang Department of Systems Engineering and Naval Architecture, Taiwan...

... The purpose of this study is to clarify the mechanism of pull-out resistance for shallow suction foundation in clay layer and to propose a method estimating the pull-out resistance. The effects of penetration depth, open ratio, cohesion of clay layer and pull-out velocity on suction and pull-out...

... test result disturbance tanaka sample quality sampler specimen upstream oil & gas shear modulus mihara reservoir characterization suction kpa bender element test residual effective stress void ratio yuubari river effective stress log analysis relation well logging...

.... cyclic loading riser soil model stiffness degradation nonlinear seabed suction fatigue damage time history trench depth node 142 axial strain scr response upstream oil & gas steel catenary riser nonlinear soil model soil spring soil stiffness Steel Catenary Riser (SCR) design...