.... Considering the effect of cyclic loadings, a novel t-z spring is used to improve the analysis of accumulated inclination of OWT jacket foundation. The improved simulation method is verified by a centrifuge test. Furthermore, a series of numerical studies based on the improved method are performed...

... is proposed, which contains two simulation modules, i.e. mooring line dynamics and seabed trenching. The method is verified by the data of the field and centrifuge tests. Furthermore, the influences of mooring line tension and soil strength on trench dimensions are investigated. The result shows that obvious...

... penetration resistance stiff layer géotechnique spudcan penetration resistance profile peak point strength undrained shear strength penetration centrifuge model test centrifuge test soft layer deformation spudcan model test spudcan punch-through mechanism upstream oil & gas Study...

...-element (LDFE) analyses and centrifuge tests have been carried out varying combination of spudcan shape factors: underside profile; skirt length; and number of holes. The results from this study indicate that subtle changes in spudcan shape can ease the spudcan-footprint interaction issues...

... dependency of clayey soil is represented by an elasto-viscoplastic soil model. The numerical model is validated against existing centrifuge testing data. The anchor deceleration profiles and the development of excess pore pressures around the anchor are discussed. A parameteric study is then conducted...

.... steel pipe pile offshore wind turbine loading stage displacement pile diameter horizontal bearing capacity lateral displacement measurement centrifuge test lateral displacement single pile renewable energy lateral load numerical model diameter monopile lateral capacity average error...

... micropile conventional micropile settlement soil layer resistance test model frictional resistance waveform micropile micropile design load-settlement relationship engineering centrifuge test small-scale model diameter prototype model bearing capacity single shear key shear key...

...-Coulomb constitutive model is chosen but modified to describe the sand behavior. For loose and dense sand, different functions are employed to introduce evolutions of the friction angle and the dilation angle. The calculated results are compared to centrifuge tests and existed load-displacement curves...

... as a crucial factor in achieving improvements of bearing capacity. In this study, a series of centrifuge test was conducted using different shapes of waveform micropiles including conventional and a jet grouted piles. With the obtained data, a comparative study was done to evaluated load-settlement...

... Abstract This study aims to investigate the usage of multiple suction anchors as a group. The group suction anchor is designed by rigidly connecting single suction anchors in parallel. In order to evaluate the pullout capacity of group anchors, centrifuge tests were performed and the measured...

... Abstract ESA has padeye on its side wall so as to be pulled out in any direction. In addition, embedded suction anchor2 (ESA2) that has padeye on both sides can be pulled out in vertical direction. A series of centrifugal tests were conducted to evaluate the maximum vertical pullout capacity...

... experimental data before being used for design of Arctic offshore pipelines. This paper describes a continuum model to simulate ice gouging processes and its initial validation through comparisons with small scale centrifuge test results, which were conducted for the purpose of evaluating the continuum...

..., dynamic centrifuge tests with different types of piles in dry sand, pre-installed pile, a 1g jacked pile and a 40g jacked pile, were carried out in order to analyze the effect of pile installation on the dynamic p-y backbone curve. The installation effect was shown to be within less than the depth at 3D...

... centrifuge tests and large deformation finite element (LDFE) simulations were conducted. The results indicated that, by comparing with the bearing capacity response of a penetrating spudcan, a skirted footing displayed the ability to reduce the potential of punch-through failure of a foundation on sand over...

... stockless anchor trench configuration rock cover midstream oil & gas anchor efficiency anchor trajectory anchor centrifuge test protection anchor size trench offshore pipeline interaction numerical analysis Validation of Rock Berm Cover Design for Offshore LNG Pipeline in Hong Kong...

... ABSTRACT This paper presents data from a series of Minidrum Centrifuge tests in which the effects of backfill cover (1 m & 1.3 m) and rock-dump (0.5 m) thickness on the uplift resistance were investigated. All the centrifuge tests were carried out at 30g using natural marine clay...

... During the installation of Suction Embedded Plate Anchors (SEPLAs), soil in the vicinity of the suction caisson can be disturbed. The effect of the soil disturbed zone on the capacity of plate anchors was investigated in this paper. Both finite element analysis and centrifuge tests were...

... to be quantified in order to come to a realistic and economical design of protective rockfill covers for offshore cables and pipelines. The paper describes the set-up of the tests and the results. The centrifuge tests show that the chain size to rockfill size ratio and chain tension are important parameters...

... ABSTRACT Centrifuge tests have been performed at Centre for Offshore Foundation Systems in order to investigate the performance of a rock protection poured into a trench to protect a pipeline against the dragging of vessels anchor. The results provided reliable and useful information about...

... caisson penetration suction installation simulation plug loosening centrifuge test flow in porous media relative density heave well decommissioning installation caisson seepage flow Study of Seepage Flow and Sand Plug Loosening in Installation of Suction Caissons in Sand Manh N. Tran1, Mark...