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Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-010
... ABSTRACT: This article presents an alternative procedure for in-situ strength profiling the supporting soil volume of offshore foundation structures. A particular focus is placed on coarse-grained materials with large fines and mica content. Soil types which are generally encountered offshore...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-030
... site-specific CPT-based correlations to estimate V s , and hence G max . Using example SCPT data from two offshore wind farms, this paper demonstrates the procedures from processing SCPT data to develop site-specific and unit-specific V s correlations. In order to achieve good fitting between the V s...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-045
... has been reported to significantly reduce the shear strengths of the host soils. In order to investigate the effect of enclosed gas bubbles on the mechanical behaviour of soils, a triaxial set-up and experimental procedure was designed based on the axis-translation technique for gassy soils...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-085
... installation impact hammer boulder container investigation engineering experimental investigation penetration test 2 sensor pile head innovative geotechnology mathematics of computing deformation test 1 sand surface procedure diameter Innovative Geotechnologies for Energy Transition...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-106
... agreement geologist load-transfer curve displacement geology initial radial unified cpt method subsea system interface test formulation reservoir geomechanics shear stress pile 3 experimental result procedure load-transfer curve formulation society innovative geotechnology pile test...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-117
... of the undrained strength and stiffness of the soil. A fully automated, iterative approach to account for layer-specific cyclic degradation when modelling monopiles in finite element (FE) code Plaxis 3D is presented. The procedure makes use of the Python-Plaxis interface to (i) create the FE model, (ii) process...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-118
... to that encountered in design of offshore oil and gas structures. Mass design of foundations for large offshore wind farms also calls for efficient design procedures. platform design geology sustainability reservoir geomechanics foundation geologist social responsibility subsea system cyclic loading...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-121
... interaction procedure geologist kementzetzidis cyclic loading calibration technology cyclic soil reaction metrikine suryasentana & lehane loading programme mechanism engineering monopile loading soil reaction lateral cyclic loading soil surface Session 11 - Cyclic & Seismic Behaviour...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-128
... ABSTRACT: Offshore windfarms are now under development in seismically active regions and many of these locations exhibit soils that may liquefy when subject to design earthquakes. This paper presents a procedure to allow fully site-specific seismic assessments to be conducted for OWF...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-130
... time-domain analyses that are sensitive to assumptions about key input parameters. The proposed paper will present a simplified response spectrum analysis (RSA) procedure that estimates the peak seismic response directly from an earthquake design spectrum and captures the structural dynamics and SSI...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-165
... is not yet available. This paper presents results from a research study on the development of an innovative triaxial testing procedure to measure the shear modulus in the intermediate strain range for a clean dense sand. Results reveal that repeatable and reliable shear modulus reduction curves from small...
Proceedings Papers

Paper presented at the Offshore Site Investigation Geotechnics 9th International Conference, September 12–14, 2023
Paper Number: SUT-OSIG-23-221
...). reservoir characterization medusa dmt depth geology sdmt traditional sdmt geologist geological subdiscipline procedure investigation medusa sdmt dmt intermediate parameter test procedure sdmt traditional sdmt silt medusa sdmt and traditional sdmt pressurization rate unit ii cable...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-06
... the potentially highly significant effects on axial capacity of piles that experience high ratios of cyclic to average loads. New research and calculation procedures are emerging that offer significant improvements in a broad spread of topics. 59 uncertainties being covered by the standard factors applied...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-52
... development, with a water depth COMPARISON OF PILE DRIVEABILITY METHODS IN NORTH SEA SAND T Byrne, P Doherty and K Gavin University College Dublin, Ireland R Overy SHELL UK Ltd, UK Abstract Significant research effort has been put into the formulation of improved design procedures for the calculation...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-73
... using the procedure suggested by Merifield et al. (2003) for the estimation of uplift capacity are shown. The two curves Nco correspond to the break-out fac- tor for the Anchor 1 and 2, respectively. Maximum and minimum values obtained of 2D-MC FEM analyses are Nc = 14.9 and 12.9. Nc is constant for 3...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Confronting New Challenges and Sharing Knowledge, September 11–13, 2007
Paper Number: SUT-OSIG-07-151
... strength, and it is shown how this parameter depends on equipment and procedures used. It is also shown that strain rate and temperature effects need to be carefully considered, as well as thixotrop and creep. INTRODUCTION Need for soil parameters in deep water field development Information about...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Confronting New Challenges and Sharing Knowledge, September 11–13, 2007
Paper Number: SUT-OSIG-07-441
... matter content diffraction sediment gulf quantification laser diffraction sedimentation determination suspension procedure mineral reservoir characterization drilling fluid management & disposal particle size distribution drilling fluids and materials upstream oil & gas...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics 'Diversity and Sustainability'; Proceedings of an International Conference, November 26–28, 2002
Paper Number: SUT-OSIG-02-301
... upstream oil & gas contractor jack-up foundation assessment hazard foundation foundation assessment procedure interpretation reliability site assessment operator bearing capacity applicability soil condition spudcan geotechnical data assessment asia jack-up punch-through...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics 'Diversity and Sustainability'; Proceedings of an International Conference, November 26–28, 2002
Paper Number: SUT-OSIG-02-325
... 38-in and 42-in pipes and variable-diameter conductor pipes are becommg increasingly popular. Conductors are usually mstalled by cementing the casing in to a pre-drilled oversized hole (drilling and cementing), or by jettmg, a procedure analogous to wash boring in onshore geotechmcal mvestigations...

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