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Offshore Site Investigation and Geotechnics 2017 Conference Proceedings

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Proceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London

Volume 1
ISBN 0 906940 57 5
ISBN–13 978 0 906940 57 0
ISSN 2754-6322
Hardbound, Colour 585 pp

Volume 2
ISBN 0 906940 58 3
ISBN–13 978 0 906940 58 7
Hardbound, Colour 736 pp

Offshore Site Investigation and Geotechnics – ISSN 2754-6322

Price: Non-members £100, members £90

This international site investigation conference, organised by the Offshore Site Investigation and Geotechnics (OSIG) Committee of the Society for Underwater Technology, is the eighth in a series started by SUT in 1978. This conference, ‘Smarter Solutions for Future Offshore Developments’, continued the aims of this established series of disseminating and communicating the latest developments in all aspects of marine geotechnology.

Contents:

Volume 1

International Society for Soil Mechanics and Geotechnical Engineering – 4th McClelland lecture Bramlette McClelland: Offshore Geotechnical Engineering Pioneer
AG Young
Introduction to Alan G. Young, The Fourth ISSMGE McClelland Lecturer
P Jeanjean
Understanding the Full Potential of an Integrated Geoscience Study
AG Young
A Phased And Integrated Data Interpretation Approach to Site Characterisation
S Thomas
Substrate Controls on the Life-Time Performance of Marine HV Cables
JK Dix
A Framework for Monotonic p-y Curves in Clays
P Jeanjean
PISA: New Design Methods for Offshore Wind Turbine Monopiles
BW Byrne
Characteristics of Unified Databases for Driven Piles
BM Lehane

Geohazards & Geophysics

Utilisation of 3D Exploration Seismic Data to Optimise Site Investigations – a Case Study from the Timor Sea
D Sunderland, A Lane
Geohazards of the North West Shelf, Australia
P Hogan, I Finnie, S Tyler, J Hengesh
Use of 3D Exploration Geophysical Data for Early Stage Geohazard Assessment and Pipeline Route Feasibility
CA Smith, S Thomas, S Langford, A Aslam
Adapting Seismic Surveys to Shallow Investigation of Offshore Bedrock
A Souf, T Denois, S Pouliquen, P Lucquiaud
Geospatial Analysis for Offshore Geotechnical Design
D Rushton, L Jones, T Nott, M Rattley
Shallow Submarine Landslides as a Geohazard to Coastal Infrastructure: Examples from NW United Kingdom
G Carter, D Long, M Stoker, D Tappin, J Howe
Slope Stability Assessment of the Stones Development in the Gulf of Mexico
YJ Choi, F Nadim, N Boylan, C Hadley, A Young, A Niedoroda, B Saha
Has Anyone Seen the Crenulate? The Crenulate Reflection, Base Quaternary and the Aberdeen Ground Formation
F Buckley
Seafloor Response to Large Volcanic Activity and Geohazard Implications in Naples Bay, Southern Italy
C Violante, M Sacchi, V Spiess, L Steinmann
Scour Effect Around Suction Bucket Foundations and Monopiles in Clay
Y Shin, N Sivasithamparam, T Jung, H Wang, S Song, S Park, J Sim

Geotechnical Site Investigation & Design

A New Approach for Cost-Effective Site Investigations for Offshore Wind Farms
A Adamopoulos, W Cleverly, L Costa
Near-Real Time Geophysical and Geotechnical Data Integration: The Importance of Optimising the Collection of Data
D Harrison, CA Smith, S Thomas, S Black, S Jegandan
Guidelines for Use of CPTU Application Classes According to ISO 19901-8: (2014) 300
T Lunne, R Santos, J Brink Clausen
The Influence of Insertion Process on Determining the Stiffness Characteristics of Chalk, using Pre-Bored, Self-Bored and Pushed Pressuremeters
R Whittle, E Palix, D Donaghy
The use of Non-destructive Core Logging and X-ray Imaging Techniques to Resolve a Complex Engineering Geological Stratigraphy for a Planned Offshore Windfarm
JW Shreeve, B Shreeve, J Pitel, E Palix, A Souf
Geotechnical Characterisation of Soils Containing a High Silt Content
P Moran, J Brianso Del Rio, M Orlowska, Nick Rae, Mark Finch
Experimental Study on Effect of Stress Relief and Gas Exsolution on Sample Quality
S Yang, T Lunne, K Andersen, G Yetginer
Influence of Pre-Shearing on the Triaxial Drained Strength and Stiffness of a Marine North Sea Sand
V Quinteros, T Lunne, R Dyvik , L Krogh, R Bøgelund-Pedersen and S Bøtker-Rasmussen
CPT-Based Design Procedure for Installation Torque Prediction for Screw Piles Installed in Sand
T Al-Baghdadi, C Davidson, M Brown, J Knappett, A Brennan, C Augarde, W Coombs, L Wang, D Richards, A Blake
Large Diameter Driven Piles in the Bolders Bank Formation: A Case Study
G Giuliani, S Davies, M Vaziri
Seabed Investigation by a Novel Hybrid of Vessel-Based and Seafloor-Based Drilling Techniques
P Looijen, J Peuchen
Offshore Characterisation of Extremely Soft Sediments by Free Fall Penetrometer
J Peuchen, P Looijen, N Stark
Aged Undrained Shear Strength of Remoulded Clays
A Lutenegger
Application of a Memory Surface Model in Predicting the Sand Response Under Cyclic Loading Conditions
R Corti, A Diambra
Undrained Shear Strength of Offshore Sediments from Portable Free Fall Penetrometers: Theory, Field Observations and Numerical Simulations
N Stark, K Ziotopoulou
A Practical Constitutive Model for Offshore Foundation Problems Involving Dense Sands in Partially Drained to Undrained Conditions
S Whyte, M Rattley, C Erbrich, H Burd, C Martin

Advanced Soil Characterisation

Scour and Erosion Effects in Offshore Geotechnics
HJ Luger, G Hoffmans, T Raaijmakers, A Borges Rodrigez, P Watson, H Krisdani, S Leckie,R Whitehouse, S Draper, B Spinewine
On the Use of Constitutive Models in Numerical Analyses of Offshore Structures
A Grammatikopoulou, FC Schroeder, AM Brosse, KW Andersen, DM Potts
A Framework for Cyclic p-y Curves in Clay and Application to Pile Design in GoM
Y Zhang, K H Andersen, P Jeanjean, A Mirdamadi, A S Gundersen, H P Jostad
3D Finite Element Modelling of the Cyclic Behaviour of Offshore Gravity Base Foundations on Sands
H Dingle, C Humpheson, A Pillai
Laboratory Testing Based Design Method for Assessing Cyclic Response of Driven Piles in Chalk
P Houlston, S Manceau, A Benson, I Alobaidi, R Evans, M Pacheco Andrade, JH Meincke
Normalised Modulus Reduction and Material Damping Ratio Curves for Bay of Campeche Clay
VM Taboada, V Dantal, D Cruz Roque, FA Flores Lopez, RE Vazquez Monroy, P Barrera Nabor
Variations and Limitations of Curve Fitting Methods for Small Strain Shear Modulus in Sands Using the ICP Design Methodology
T Masters, M Senthilkumar, G Woodyard
Seismic Design of Subsea Structures: Linear Time-History vs Response Spectrum Analyses and Practice Oriented Considerations
M Cademartori, D Bertalot, M Molinari, O Zanoli, A Raggio, P Basso
Subsea Foundations on a Liquefiable Seabed
H Suroor
Numerical Simulation of Suction Bucket Under Vertical Tension Loading
K Shen, Y Zhang, RT Klinkvort, H Sturm, HP Jostad, N Sivasithamparam, Z Guo

Suction Installed Foundations

Centrifuge Testing and Numerical Modelling of a Suction Caisson in a Layered Soil – Static and Cyclic Response
L Lorenti, B Lehane
Installation of Suction Anchors in Layered Soils
M Saue, P Aas, K Andersen, E Solhjell
Suction Pile Foundations: Kinematic Soil-Structure Interaction
D Bertalot, O Zanoli, A Murianni
Physical Modelling of Suction Bucket Installation and Response Under Long-Term Cyclic Loading
Bienen, C O’Loughlin, F Zhu
Suction Installation of Square and Multi-Compartment Skirted Foundations in Sand
L Tapper, C Humpheson, G Jackson
Successful Installation of Large Suction Caissons and Driven Piles in Carbonate Soils
S Frankenmolen, C Erbrich, R Fearon
Field Testing and Numerical Back Analysis of Under-Pressure Installation and Over-Pressure Extraction of a Suction Caisson in a Layered Soil
LSD Lorenti, BM Lehane
Simplified Model for the Stiffness of Suction Caisson Foundations under 6 DOF Loading
SK Suryasentana, BW Byrne, HJ Burd, A Shonberg
Penetration Resistance of Suction Caissons in Layered Soils – A Case Study
S Panayides, TA Powell, K Schrøder
Critical Suction Pressures During Installation of Suction Caissons in Sand
S Panagoulias, BFJ van Dijk, T Drummen, A Askarinejad, F Pisanò
Model Testing of Suction Bucket Foundations under Tensile Loading in Non-Cohesive Soil
P Gütz, M Achmus, K Thieken, C Schröder

Volume 2

Pile Design and Installation

Upper Bound Plastic Limit Analyses of Laterally Loaded Piles in Stratified Soils
F Grajales-Saavedra, C Aubeny, D Drew, P Jeanjean, A Zakeri
Investigation of the Effects of Pile Modelling on Jacket Structural Analyses Results
N Hamdan, N Morgan, D Christie, F Hosseini
Finite Element Analysis of Soil Plug Behaviour Within Open-Ended Piles
T Joseph, G Houlsby, H Burd, P Taylor
Laboratory Test Predictions of the Cyclic Axial Resistance of a Pile Driven in North Sea Soils
M Rattley, L Costa , R Jardine, W Cleverly
Large Scale Offshore Static Pile Tests – Practicality and Benefits
P Barbosa, M Geduhn, R Jardine, F Schroeder
Driven Pile Design Method for Weak Rock
V Terente, I Torres, J Irvine, C Jaeck
Engineering Behaviour of Mercia Mudstone for Offshore Pile Design
A Sultaniya, M Rattley, P Gibbs, M Pacheco Andrade, M Liingaard, S Lam, C Erbrich
Re-Evaluation of Pile Driveability in Chalk
J Dührkop, S Maretzki, J Rieser
Installation Response of 5.5m Diameter Driven Piles in Carbonate Soil – The Ichthys Development
N Boylan, A Roux, JL Colliat-Dangus, A Sato
Driving the Moho Nord TLP Piles and Conductors in Deepwater Offshore Congo
JL Colliat-Dangus
A Methodology for the Probabilistic Assessment of Pile Refusal Due to Boulder Encounter
B Stuyts, G Ellery, J Davidson, I Torres, M Rose
An Integrated Pile Foundation Reassessment to Support Life Extension and New Build Activities for a Mature North Sea Oil Field Project
R Argiolas, R Jardine
Analysis of a Torsionally Loaded Pile Considering the non-linear Distribution of the Soil Shear Modulus
Z Xin-jun, X Yang-yang, X Dong-bin
Effects of Cyclic Axial Loading Sequences on Piles in Sand: Centrifuge Modelling
M Blanc, L Thorel
Robust Analyses and Acceptance of Driven Piles for Offshore Structures
N Morgan, D Christie, N Hamdan
Evaluation of p-y Approaches for Piles in Soft Clay
M Terceros, M Achmus, K Thieken

Subsea Shallow Foundations

Extraction of Piles and Shallow Foundations
E Heins, J Grabe
Effect of Foundation Flexibility on Consolidation Gains in Undrained Capacity
X Feng, S Gourvenec
Model Testing Of Recovery Loads For Decommissioning Skirted Subsea Structures
A Brennan, M Brown, J Knappett, C McMillan, H Aldaikh, A Small, D Morrow
In-situ Tests and Numerical Analyses for Bearing Capacity of Shallow Foundation on Rock-Fill Material
A Mirdamadi, H Pederstad, A Rahim, K Tronstad
A Probabilistic Investigation of Primary Consolidation Settlements of Subsea Structures
M Silva, L Begaj, A Amodio
Centrifuge Tests on a Sliding Foundation: Impact of the Undrained Cohesion Profile
M Blanc, L Thorel, R Wallerand
Validation of a Surface Foundation Macro Model by Laboratory Testing
J Tistel, G Eiksund and G Grimstad
Whole-Life Assessment of Subsea Shallow Foundation Capacity
S Gourvenec, S Stanier, D White, N Morgan, M Banimahd, J Chen
The Undrained Capacity of Shallow Two-Foundation Systems Acting in Consort Under Three-Dimensional Loading
S Abyaneh, A Maconochie, J Oliphant
Hybrid Subsea Foundations – From Research to Project Application
R Wallerand, M Cafi, D Kay, P Dimmock, M Randolph
Mudmat Perforation – Geotechnical Serviceability Assessment of Foundation Performance On Soft Soil
A Ulvestad, S Giese, A Stordal
Limit Analysis Of Hybrid Subsea Foundations Under Horizontal and Torsional Loading
H Dunne, C Martin, R Wallerand
Hybrid Foundation for Temporary Support of Fixed Tripod or Jacket Structure
T Drummen, B van Dijk, J Peuchen
Prediction of Retrieval Loads for Shallow Foundations in Very Soft Clay
D Kay, N Dale-Lace, B Vignaud, R Wallerand

Pipelines

Effect of Through-Life Changes in Soil Strength and Axial Pipe-Seabed Resistance for HPHT Pipeline Design
HE Low, M Ramm, MF Bransby, DJ White, ZJ Westgate
Evaluation of Soil Stiffness Support at Shoulder for Free-Span Pipeline
EY Kencana, CF Leung, YK Chow
Experimental and Numerical Study of Pipelines Shallowly Embedded in Sands
X Zhao, Y Luan, C Zhang, Y Tian, X Huang
Modelling of Pipeline and Cable Flotation Conditions
T Bizzotto, MJ Brown, A Brennan, T Powell, H Chandler
Optimised Backfill Design for Preventing Pipeline Flotation
C Erbrich, H Zhou
Active Pressure of Rock Berms on Pipelines
D Carneiro, A Borges Rodriguez, R T Klinkvort, A Worren, M Banimahd
Risk Based Approach for Offshore Cable Burial Depth Assessment
H Doan, A Puech, A Savadogo, Dr L MacNay
Hydraulic Stability of Cable Crossing Rock Berms in Combined Waves and Current
A Roulund, SM Larsen, RJS Whitehouse, N Crossouard
Application of the Bathymetric Position Index Method (BPI) for the Purpose of Defining a Reference Seabed Level for Cable Buria
lM Secomandi, E Jones, V Terente, R Comrie, MJ Owen
Improvement of Seabed Cable Plough Tow Force Prediction Models
S Robinson, MJ Brown, AJ Brennan, M Cortis, CE Augarde, WM Coombs
Axial Behaviour of Partially Embedded Subsea Pipelines using Numerical Analysis
M Senthilkumar, J Kodikara, P Rajeev, NI Thusyanthan

Mooring Systems

Numeral Study of Spudcans Penetrating Near Existing Footprints During Jack-Ups’Reinstallation
L Yu, J Li, J Liu, L Ren, X Wang
Numerical Analyses to Determine the Failure Envelope of a Cross-Shaped Plate Foundation
E Nicolini, M Castelletti
A New Testing Method to Estimate Anchor Trajectory Based on Modified Chain Profile Predictions
J Liu, C Han, L Yu, W Zhao
Effectiveness of Skirted Spudcans in Mitigating Punch-Through in Sand-Over-Clay Deposits
JM Lee, YH Kim, MS Hossain, MJ Cassidy, Y Hu, JU Sim
Insights into the Mechanisms of Anchor Chain Trench Formation
K Sassi, MY-H Kuo, H Versteele, DN Cathie, S Zehzouh
Anchor Chain Trenching – Numerical Simulation of Progressive Erosion
H Versteele, MY-H Kuo, DN Cathie, K Sassi, S Zehzouh
Plate Anchors for Mooring Floating Facilities – A View Towards Unlocking Cost and Risk Benefits
CD O’Loughlin, DJ White, SA Stanier
Transition Depths for Deep Circular Anchors in Saturated Sand
MP Rasulo, JA Schneider, JT Newgard, CP Aubeny
Support of Offshore Structures Using Helical Anchors
A J Lutenegger
Inverse Chain Catenary in Weak Rock
K Routledge, P Allan
Site Investigation & Seabed Remediation to Avoid Sequential Jack-Up Punch Through Failure
L Kellezi, L Xu, C Molina
An Experimental Study of the Embedment of a Dynamically Installed Anchor in Sand
SH Chow, CD O’Loughlin, C Gaudin, JA Knappett, MJ Brown, JT Lieng
Numerical Modelling of Jack-Up Rig Spudcan Interaction with Normal Faults
KJ Oakes, MJ Brown, I Anastasopoulos

Wind Turbine Foundations

The Implications of Advanced Monopile Design Methodologies in Offshore Wind Turbines
D Abadias, L Zdravkovic, D Taborda, D Potts
Modelling of Monopile Response to Cyclic Lateral Loading in Sand
C Abadie, B Byrne, G Houlsby
Dynamic and Cyclic Pile-Soil Response Curves for Monopile Design
P Peralta, J Ballard, M Rattley, C Erbrich
Consequences of p-y Curve Selection for Monopile Design for Offshore Wind Turbines
S Sørensen, A Augustesen, C Leth, M Østergaard, M Møller
Efficient Pile Design for Offshore Wind Farm Jacket Structures
S Manceau, A Benson
Large-Scale Experiments and Load Transfer Analysis of Piled Foundations Supporting an Offshore Wind Turbine
A Foglia, M Wefer, F Forni
Reliability Based Assessment of Rock Socketed Piles at St Brieuc Offshore Wind Farm
A Bertossa
Prediction of Drilling Rates for Large Diameter Monopiles
F Vantomme, M Y-H. Kuo, D Cathie, T Denois
Back Analyses of Monopile Installation in North Sea Sands
S Holm, R Klinkvort, N Boylan, W-E Semm, K Price, C Clausen
Integrated Design Method of Monopile Foundations for Offshore Wind Turbines using a Kinematic Hardening Soil Model
W Beuckelaers, H Burd, G Houlsby
Application of a Numerical-Based Design Method for Laterally Loaded Monopiles in Layered Soils
Y He, B Byrne, H Burd
Pile Driving Assessments, Practical Developments in Reliability for Offshore Wind Farms
R McLean, A Lambrughi, S Manceau
Predicting Long-Term Performance of OWT Foundation using Cyclic Simple Shear Apparatus and DEM Simulations
L Cui, S Bhattacharya, G Nikitas, J Vimalan
Assessment of Pile Length Criteria for Monopile Foundations
M Achmus, M Terceros F tom Wörden, K Thieken

Geotechnical Design Studies

The New ISO 19901-4 Standard for Geotechnical and Foundation Design
JL Colliat, S Gourvenec, N Morgan, E Clukey, K Schröder, R Ruinen, S Lacasse, R Little
Field Studies on the Axial Capacity of Small Diameter Piles and Ageing Effects in Sands
R Carroll, P Carotenuto, C Dano, I Salama, M Silva, K Gavin, R Jardine
Effect of Sampling on Behaviour of Weathered Chalk with Flints
E Palix, B Souviat, RD Muhammed
Field Investigations into the Axial Loading Response of Displacement Piles in Chalk
RM Buckley, RJ Jardine, S Kontoe, T Liu, E Ushev, BM Lehane, T Pine, F Schroeder, P Barbosa
Geotechnical Design of Anchor Piles for Ichthys CPF and FPSO
C Erbrich, SY Lam, H Zhu, A Derache, A Sato, A Al-Showaiter
Hold-Back Anchor Piles with Free-Fall Potential on the Australian North-West Shelf
M Banimahd, FC Chow, S Tyler, M Senders, R Stewart-Wynne
Investigating Drag Anchor Behaviour in Calcareous Materials on the North West Shelf of Australia
FC Chow, M Banimahd, S Tyler, A Rathmell, M Ostojic, B Holland
Remote Intelligent Geotechnical Seabed Surveys – Technology Emerging from the RIGSS JIP
DJ White, SA Stanier, CD O’Loughlin, SH Chow, MF Randolph, SD Draper, H Mohr, JP Morton, J Peuchen, R Fearon, A Roux, FC Chow
A State of the Art Design Approach for Assessing Cyclic Loading on Permanent Mooring Anchors in Carbonate Sediments
C Erbrich, D O’Driscoll, S Lam, S Frankenmolen
Multi-Laboratory Assessments of Cyclic Soil Behaviour
N Ramsey, S Sharma, F Lee
Automation and Control in a Submarine Drill Rig
AG Arriaga, M Devincenzi, N Pérez, A Deu, M Arroyo
Common Pitfalls of Pile Driving Resistance Analysis – A Case Study of the Wikinger Offshore Windfarm
RM Buckley, S Kontoe, RJ Jardine, M Maron, FC Schroeder, P Barbosa
Synthetic CPTs from Intelligent Ground Models based on the Integration of Geology, Geotechnics and Geophysics as a Tool for Conceptual Foundation Design and Soil Investigation Planning
CF Forsberg, T Lunne, M Vanneste, L James, TI Tjelta, A Barwise, C Duffy

Case Studies

Geological, Geophysical and Geotechnical Integration for Cable Burial Assessment
C Smith, R Haynes, S Thomas
Deterministic vs Probabilistic Liquefaction Assessment – A Case Study
O Zanoli, A Murianni, G Scelsi, P Poggi
Johan Sverdrup – Assessment of Soil Material Behaviour and Strength Properties for the Shallow Silt Layer
E Solhjell, R Carroll, S Strandvik, G Håland
Geotechnical Aspects of the Design and Construction of the Malampaya Depletion Compression Platform
L Lorenti
Integration of Geophysical, Geological and Geotechnical Data for Offshore Wind Farms – East Anglia One OWF, Southern North Sea, A Case History
J Reynolds, L Catt, G Salaün, P Knight, W Cleverly, L Costa
BP Clair Ridge: Independent Foundation Assurance For The Capacity Of Driven Piles in Very Hard Soils
K Hampson, T Evans, R Jardine, P Moran, B Mackenzie, M Rattley
Development of 3D Ground Models for Offshore Wind Farms – Rhiannon OWF, Irish Sea
J Reynolds, L Catt, A Fernandes, P Knight
Archaeological Palaeolandscape Assessment for Marine Offshore Development Using Seismic and Geotechnical Data – The UK Experience
D Lloyd Jones, E Salter