Frontiers in Offshore Geotechnics

Frontiers in Offshore Geotechnics : Proceedings of the International Symposium on Frontiers in Offshore Geotechnics (IS-FOG 2005), 19-21 Sept 2005, Perth, WA, Australia

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This book addresses current and emerging challenges facing those working in offshore construction, design and research. Keynote papers from leading industry practitioners and academics provide a comprehensive overview of central topics covering deepwater anchoring, pipelines, foundation solutions for offshore wind turbines, site investigation, geohazards and emerging Australian frontiers. A further 125 peer reviewed papers introduce and analyse the critical challenges of offshore geotechnical engineering in the areas of the keynote subjects as well as piling, caissons and shallow foundation systems. The papers collected in these proceedings report a variety of numerical and theoretical investigations, experimental programs and field experience, with established design methods discussed alongside state-of-the-art more

Product details

  • Electronic book text | 1130 pages
  • Taylor & Francis Ltd
  • CRC Press
  • United Kingdom
  • 0415889340
  • 9780415889346

About Susan Gourvenec

Dr Susan Gourvenec is a Lecturer at the Centre for Offshore Foundation Systems (COFS) at the University of Western Australia. Dr Gourvenec joined COFS in 2001, where she works in the area of offshore shallow foundations with particular emphasis on the effect of combined loading. Her current research interests include the bearing and tensile capacity of skirted foundations under general loading and the pull-out capacity of suction caissons under inclined loads using numerical methods and geotechnical centrifuge modelling. Dr Mark Cassidy is a Senior Lecturer at the Centre for Offshore Foundation Systems (COFS) at the University of Western Australia. His current research interests include the development of numerical models for shallow foundation behaviour, risk assessment and the optimisation of offshore foundation systems, fluid-structure-soil interaction and geotechnical centrifuge more

Table of contents

Keynote papersSuction anchors for deepwater applications Vertically loaded plate anchors for deepwaterAustralian frontiers - spudcans on the edge Suction caissons for wind turbines Pipeline geotechnics - state-of-the-art An operator's perspective on offshore risk assessment and geotechnical design in geohazard-prone areas Offshore site investigations: new frontiers Deepwater developments: drag and plate anchorsInfluence of anchor geometry and soil properties on numerical modeling of drag anchor behavior in soft clay The effect of interface friction on the performance of drag-in plate anchors Proposed upper bound analysis for drag embedment anchors in soft clay Ultimate pullout capacity of SBM's VErtically Loaded Plate Anchor (VELPA) in deep sea sediments Effects of long term loading on storm capacity of vertically loaded anchors An experimental and numerical study of rate effects for plate anchors in clay Vertical pullout behavior of plate anchors in uniform clay Pullout capacity of circular plate anchors in double-layered clays The use of inflatable anchors in offshore sandy soils Deepwater developments: suction caissonsSuction caisson soil displacement during installation Lessons learned from several suction caisson installation projects in clay Centrifuge tests on axial capacity of suction caissons in clay Evaluation of recovery of wall friction after penetration of skirts with laboratory and field tests Study of sand heave formation in suction caissons using Particle Image Velocimetry (PIV) Electrokinetic and electrochemical stabilization of caissons in calcareous sand Vertical uplift capacity of suction caisson in clay Capacity of suction caissons under inclined loading in normally consolidated clay A failure surface for caisson foundations in undrained soils Parametric finite element analyses of suction anchors Centrifuge modelling of suction piles in clay Establishing a model testing capability for deep water foundation systems Reliability-based design considerations for deepwater mooring system foundations Validation of the use of beam-column method for suction caisson design Validation of the use of finite element method for suction caisson design Developments in the Australian frontiersGeotechnical interpretation for the Yolla A Platform Preloading of drag anchors in carbonate sediments The geotechnical performance of Deep Penetrating Anchors in calcareous sand Seabed geotechnical characterisation with a ball penetrometer deployed from the Portable Remotely Operated Drill Static and cyclic behavior of laterally loaded piles in calcareous sand Foundation solutions for offshore wind turbinesDesign aspects of monopiles in German offshore wind farms Finite element modelling of horizontally loaded monopile foundations for offshore wind energy converters in Germany Tripods with suction caissons as foundations for offshore wind turbines on sand The tensile capacity of suction caissons in sand under rapid loading Moment loading of caissons installed in saturated sand The theoretical modelling of a suction caisson foundation using hyperplasticity theory Shallow foundations: vertical bearing capacityBearing capacity of parallel strip footings on non-homogeneous clay Study on bearing behaviors of foundations on multi-layer subsoil Numerical study of shallow foundations on calcareous sand Undrained bearing capacity of shallow foundations on structured soils An investigation into the vertical bearing capacity of perforated mudmats Shallow foundations: combined loadingYield loci for shallow foundations by `swipe' testing Investigating 6 degree-of-freedom loading on shallow foundations Single surface hardening model - a system law to describe the foundation-soil interaction Bearing capacity of strip footings subjected to complex loading Numerical analysis of bearing capacity of foundation under combined loading Centrifuge tests on improving offshore foundation systems Shallow foundations: mobile jack-up unitsExtraction of jackup spudcan foundations Numerical simulation of the breakout process of an object at the ocean bottom Spudcan penetration in sand overlying clay Punch-through of spudcan foundations in two-layer clay Influence of jack-up operation adjacent to a piled structure FE modelling of spudcan - pipeline interaction Jack-up footing penetration and fixity analyses Breakwater caissons and liquifactionPerformance of caisson breakwater subjected to breaking wave loads An interaction model for seismic stability analysis of caisson type structure Progressive ocean wave modelling in drum centrifuge Numerical analysis of dynamic response of seabed under random wave loading PipelinesThe performance of pipeline ploughs in layered soils Physical and numerical modelling of lateral buckling of a pipeline in very soft clay Bearing capacity and large penetration of a cylindrical object at shallow embedment Stability design of untrenched pipelines - geotechnical aspects Pipeline-seabed interaction analysis subjected to horizontal cyclic loading A numerical model of onset of scour below offshore pipelines subject to steady currents Arctic seabed ice gouging and large sub-gouge deformations Model tests to simulate riser-soil interaction in touchdown point region Capacity of piles in sandResults from axial load tests on pipe piles in very dense sands: the EURIPIDES JIP CPT-based design method for steel pipe piles driven in very dense silica sands compared to the Euripides pile load test results Bearing capacity of driven piles in sand, the NGI approach The UWA-05 method for prediction of axial capacity of driven piles in sand An updated assessment of the ICP pile capacity proceduresA general framework for shaft resistance on displacement piles in sand Field research into the effects of time on the shaft capacity of piles driven in sand Design criteria for pipe piles in silica sands Estimating the end bearing resistance of pipe piles in sand using the final filling ratio Evaluation of end-bearing capacity of open-ended piles driven in sand from CPT data Evaluation of end-bearing capacity of closed-ended pile in sand from cone penetration data The influence of effective area ratio on shaft friction of displacement piles in sand A centrifuge study of the monotonic and cyclic resistance of piles and pile groups in sand Correlations for shaft capacity of offshore piles in sand Axial load tests on pipe piles in very dense sands at Ras Tanajib PilesBearing capacity of driven piles in clay, the NGI approach Lateral pile design of the Ursa tension leg platform Case study on soil plugging of open-ended steel pipe piles in Tokyo Bay Foundation capacity of piled offshore platforms Soil characterization for consistent reliability in the Load and ResistanceFactor Design of pile foundations Buckling considerations in pile design Propagation of pile tip damage during installation One dimensional wave propagation analysis of an open-ended pipe pile with consideration of the excess pore pressure in soil plug Simplified analysis of single pile subjected to dynamic active and passive loadings Simplified dynamic analysis of pile group subjected to horizontal loading Reliability analysis on axially loaded pile foundation of offshore platforms Numerical analysis of pile axial loading test on Ryukyu calcareous sediments A preliminary investigation into the effect of axial load on piles subjected to lateral soil movement Modelling combined loading of piles with local interacting yield surfaces Assessing geohazardsAssessment of the hydrate geohazard Gas hydrates and their potential effects on deep water exploration activities OpenSees modeling of the 3D plastic behavior of underwater slopes: achievements and limitations 3DSTAB: a history of 3D stability analysis applied in offshore geotechnics A study of ice as an analog of methane hydrate on the basis of static shear strength Tackling geohazards - a case study from the Turkmenistan shelf, Caspian Sea Site investigation techniquesDeepwater geotechnical site investigation practice in the Gulf of Guinea The origin of near-seafloor "crust zones" in deepwater Casing mounted method used for geotechnical drilling in Lavan Self/barge Installing Platform, SIP II: the Calder experience Assessment of sand quality using seismic techniques at Fisherman Islands, Brisbane Site characterization of Bootlegger Cove clay for Port of Anchorage The geotechnical diving bell - equipment used in Brazil to perform nearshore and offshore geotechnical investigations Conquering new frontiers in underwater cone penetration testing Cyclic friction piezocone tests for offshore applications Practice notes on push-in penetrometers for offshore geotechnical investigation Comparison of cone and T-bar factors in two onshore and one offshore clay sediments Considerations in evaluating the remoulded undrained shear strength from full flow penetrometer cycling Well deformations at West Azeri, Caspian Sea Borehole squeezing in soft clays Soil characterizationModelling the effects of structure in deep-ocean sediments Simulating the mechanical behaviour of some calcareous soils using the Structured Cam Clay model Degradation of cementation for artificially cemented carbonate sands Detection of slight cementation in offshore carbonate deposits from laboratory testing Experimental study on cyclic pore water pressure and volumetric changes of saturated loose sands under complex stress condition Some geotechnical specificities of Gulf of Guinea deepwater sediments Mineralogical characteristics of the Gulf of Guinea deep water sediments On the compressibility of deepwater sediments of the Gulf of Guinea On the classification of Bangkok clay deposits and their compressibility Long-term consolidation behavior of Pleistocene clays in Osaka Bay and applicability of elasto-viscoplastic one-dimensional consolidation model Influence of salinity on soil properties The determination of undrained shear strength and plasticity properties from quasi-static penetration tests Influence of height and boundary conditions in simple shear testsshow more