Seafloor Engineering and Characterization

Click on the links below to view project summaries and available reports for completed projects in the following areas:

Plasticity Modeling of Soil-Structure Interaction	Year
Non-Linear Load-Deflection Models for Seafloor Interaction with Steel Catenary Risers	2007
Seafloor Interaction with Steel Catenary Risers	2006
Numerical Model for Steel Catenary Riser on Seafloor Support	2005
Suction Caissons & Vertically Loaded Anchors: Design Analysis Methods	2005
Upper Bound Analysis for Drag Anchors in Soft Clay	2005
Ultimate Capacity of Suction Caisson in Normally and Lightly Overconsolidated Clays	2004
Upper Bound Method Program for Inclined Load Capacity Calculation of Suction Caissons	2004
Deepwater Anchor Design Practice Phase I and II (Report to API/Deepstar)	2003
Developing a Model for Axial Pile Capacity in an Offshore Field	2002
Development of a Statistical Model for Laterally Loaded Pile Analysis to Reduce Uncertainty in an Offshore Field	2002
Prediction Methods for Capacity of Drag Anchors in Clayey Soils	2002
The Capacity of Suction Caisson in Isotropic and Anisotropic Cohesive Soils under General Loading Conditions	2002
Design Methodologies and Criteria for Suction Caissons for Deepwater Mooring Applications Workshop	2001
Lateral Resistance of Suction Caisson Anchors	2000

CFD Modeling of Soil-Structure Interaction	Year
Torpedo Piles for Gulf of Mexico Applications - Model Torpedo Pile Tests in Kaolinite Test Beds	2008
Numerical Modeling of Torpedo Anchors	2006

FEM Modeling of Soil-Structure Interaction	Year
Suction Caissons: Finite Element Modeling	2005
A Computational Procedure for Simulation of Suction Caisson Behavior Under Axial and Inclined Loads	2004
Computational Procedure for the Estimation of Pile Capacity Including Simulation of the Installation Process	2001
Analysis of the Integral-Ring Arrestor for Deep-Water Pipelines	1995
Stability of Tubes Under External Pressure and Structural Loads	1993
Steady-State Finite Element Analysis of Buckle Propagation in Pipelines	1993
A Finite Element Model for the Analysis of Pile Driving	1992
Stability of Deep-Water Pipelines Under Combined Loading	1991
Dynamics of Propagating Buckles in Deep-Water Pipeline	1990
Finite Element Analysis of Propagating Buckles in Deep Water Pipelines	1990

Scale Modeling of Soil-Structure Interaction	Year
The Performance of Drag Embedment Anchors (DEA)	2010
Performance of Suction Caisson Anchors in Normally Consolidated Clay	2005
Suction Caissons : Model Tests	2005
Laboratory Tests to Estimate Strength Profile of Normally Consolidated Kaolinite	2004
Horizontal Capacity of Suction Caissons in Normally Consolidated Kaolinite	2003
Axial Capacity of Suction Caissons in Normally Consolidated Kaolinite	2002
A Laboratory for Measuring the Axial and Lateral Load Capacity of Model Suction Caissons	2001
Model Offshore Soil Deposit: Design, Preparation, and Characterization	2001
The Pullout Capacity of Suction Caisson Foundations	1999
An Experimental Facility to Model the Behavior of Steel Pipe Piles in Sand	1996
Axial Capacity of Suction Piles In Sand	1994
Design and Construction of a Model Suction Pile	1994
Investigation of Axial Tensile Load Capacity of Suction Piles	1993

Pile Foundations	Year
Analysis of Conservatism in Offshore Foundation Design	2009
Numerical Modeling of Drilled and Grouted Piles	1994
Equipment for Axial Load Testing of Model Open-Ended Pipe Piles in Sand	1992
Pipe Piles in Sand: An Improvement for the API RP2A	1992
Pile Foundations for Deep-Water Structures	1991
Effect of Oblique, Tensile Loading on the Capacity of a Vertical Pile in Clay	1990

Assessment of Environmental Risks	Year
Mudslides during Hurricane Ivan and an Assessment of the Potential for Future Mudslides in the Gulf of Mexico	2007
Risk Assessment of Submarine Slope Stability - Hydroplaning	2007
Risk Assessment for Submarine Slope Stability: Numerical Modeling of Flow around a Sliding Soil Mass	2005
The Importance of Lower-Bound Capacities in Geotechnical Reliability Assessments	2005
Assessment of Seismic Risk for Subsea Production Systems in the Gulf of Mexico	2003
Forum on Risk Assessment for Submarine Slope Stability	2003
Seafloor Slope Stability Under Static and Seismic Loading Conditions	2003
Submarine Slope Stability Forecasting and Back Analyses in Deep Water	1997

Seafloor Mapping and Characterization	Year
Suction Caissons: Seafloor Characterization for Deepwater Foundation Systems	2006
Past and Present Deepwater Contour-Current Bedforms at the Base of the Sigsbee Escarpment, Northern Gulf of Mexico	2005
Shear Strength Maps of Shallow Sediments in the Gulf of Mexico	2004
Classification of Surficial Sediments: Northern-Central and Eastern Gulf of Mexico	2003
Deepwater Sediment Characterization	2002
Dynamic Analysis for Suction Caissons and Geologic Model for Makassar Strait	2002
Geotechnical, Geological, and Geophysical Properties of Deepwater Sediments:  Proceedings of 2001 Conference Honoring Wayne Dunlap	2001
Surficial Geological Characteristics of the Alaminos Canyon	1998
Advances in Interpretation and Analysis Techniques for Spectral-Analysis-of-Surface-Waves (SASW) Measurements	1997
Analytical Studies of Surface Wave Propagation along the Seafloor for Application to Spectral-Analysis-of-Surface-Waves (SASW) Testing	1996
Relationships Between Undrained Shear Strength and Compression and Shear Wave Velocities for Offshore Clays	1996
In Situ Measurement of Stiffness Profiles in the Seafloor Using the Spectral-Analysis-of- Surface-Waves (SASW) Method	1995
Hydrate Melting and Related Foundation Problems	1994
Theoretical Investigation of the Spectral Analysis of Surface Waves (SASW) Technique for Application Offshore	1993
Driven Cone Penetrometer for Pile Driving Analysis	1992
In Situ Detection of Natural Gas Hydrates Using Electrical and Thermal Properties	1992
Predicted Geoacoustic Properties of Gas Hydrate Saturated Marine Sediments	1992
Hydrates Detection By Cone Penetration Testing. Part 1: Cone Penetration Tests Through Ice Layers	1991
Experimental Study of Applying the Spectral Analysis of Surface Waves (SASW) Method Offshore	1990

Miscellaneous	Year
Interstitially Insulated Coaxial Pipe	2007
Development of Specialized Electronic Bibliographic Databases for Deep Ocean Hydrocarbon Production and Transportation	1993
DOHPT (Deep Ocean Hydrocarbon Production and Transportation) Program User's Manual	1993
Baked in Place Natural Casings	1992