... by self-weight of the seabed soil in the simulation process. The seabed soil is regarded as an elastic-plastic body with MohrCoulomb plasticity to ensure that the material properties remain unchanged during the simulation, and the undrained shear strength and modulus of elasticity increase linearly...

... shear strength geological subdiscipline geologist reservoir geomechanics geology machine learning artificial intelligence cone penetration testing cpt correlation undrained shear strength accuracy classification site investigation borehole particle advanced machine learning...

... geologist sedimentary geology undrained shear strength upstream oil & gas depositional environment mexico government shear wave velocity equation porosity correlation clay content marine sediment experiment physical property effective media model sedimentology reservoir...

... canada government reaction force ice keel backfill soil upstream oil & gas failure mechanism offshore pipeline shear strength midstream oil & gas subgouge displacement undrained shear strength displacement soil failure mechanism pike & kenny case 1 ice gouging gouge...

... subsea system friction coefficient embedment depth helical pile soil flow mechanism end bearing factor upstream oil & gas installation torque installation force helix application bottom end penetration depth flow mechanism bearing capacity undrained shear strength...

... ABSTRACT Cracks may be created in clays after gas hydrate dissociates. More cracks can be created in clays with a high degree of gas saturation after dissociation and the degree of gas saturation is linked to peak undrained shear strength of the clays through experimental tests. A damage model...

... were encased in oedometer steel rings. Graphite powder was used to minimize adhesion between the indenters and the clay. Results were interpreted by treating the clay as an ideally elastic, elastic-plastic, and perfectly plastic material. Deformation moduli and undrained shear strengths were compared...

... ABSTRACT Miniature penetrometers are often used to obtain undrained shear strength profiles of fine-grained soils for small-size model tests. A T-bar penetrometer has been more commonly used for soft clay due to its reliability for evaluating undrained shear strength. In this study, a series...

... strength ratio can be defined as the ratio of the gain in undrained shear strength with time ( s u_t ) to remolded undrained shear strength ( s ur ). It shows how the gain in strength differs depending on the soil properties. Thixotropy is considered as a significant factor for offshore geotechnical...

... 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...

... platform. As such, the interaction between spudcan and piled foundation could be an issue (SNAME, 2008; Randolph et al. , 2011). pile head condition subsea system uniform clay model study penetration free head pile drilling equipment undrained shear strength clearance foundation spudcan...

... of undrained shear strength of the debris and underlying seabed and the gap between the pipeline and seabed on drag force, in addition to the aforementioned factors. INTRODUCTION Pipelines are one of the most reliable components of offshore hydrocarbon transportation system. In deep water, pipelines...

... strength gradient of clay m Submerged mass of the ball su Undrained shear strength of clay sum Undrained shear strength at mudline su,ref Undrained shear strength of soil at reference strain rate suz Undrained shear strength at a depth z vi Velocity of ball at the time of impact vz Velocity of the ball...

.... old nagasaki highway kamaeguchi upstream oil & gas abutment reservoir characterization foundation structure soft ariake clayey layer mnd undrained shear strength diameter subgrade saga castle stone wall shogaki east gate bridge Structures of the Subgrade of the Old Nagasaki...

... plastic failure. Moreover, the undrained shear strength of clay sediment containing hydrate increases about 1∼7 times than that of clay sediment and decreases by 50% after hydrate dissociation. INTRODUCTION Gas hydrates, as a potential energy resource, are usually occurring as ice-like solids...

... penetration test mnd dry dock shogaki specimen geotechnical interpretation undrained shear strength vinyl pipe marine transportation soil profile strength mnf japan upstream oil & gas mietsu naval facility Geotechnical Interpretation of the Mietsu Dry Dock World Heritage Site Takaharu...

... with the external loads. Finally, the study presents the monitored installation data with an interesting comparison between the predicted and the recorded field results. shear strength penetration floating production system upstream oil & gas misorientation resistance undrained shear strength...

... undrained shear strength t-bar penetrometer end section penetration surface roughness shear strength interface front view randolph End Effect of T-bar Penetrometer Using 3D FE Analysis Yue Wang1, Yuxia Hu1, Muhammad Shazzad Hossain2 1School of Civil, Environmental and Mining Engineering...

... of the excavation works. Short-term stability analyses, which were also carried out before the excavation works, were based on undrained shear strength values obtained from an in situ vane test profile. During and after the excavation, several vane and piezocone tests were completed, so as to have a better idea...

... whole structure. However, in concrete caissons, the ratios of skirt thickness to external diameter are usually very high (Chu et al., 2012). calculation formula model test foundation displacement undrained shear strength installation upstream oil & gas strength axial load randolph...