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1 Overview
1£®1Background
1£®2Recent Advances in Theoretical Models for Wave-Seabed Interactions£¨WSIs£©
1£®2£®1An Overview of Theoretical Models
1£®2£®2Simplified Models
1£®2£®3Biot's Poro-Elastic Models for Oscillatory Mechanism
1£®2£®4Inelastic Models for Residual Mechanism
1£®2£®5Poro-Elastoplastic Models
1£®2£®6Waves Propagating over a Porous Seabed£º Wave Damping and Seepage Flux
1£®3Recent Advances in Wave-Induced Seabed Instability
1£®3£®1Shear Failure
1£®3£®2Liquefaction
1£®4Recent Advances in Physical Modeling
1£®4£®1Wave Flume Experiments
1£®4£®2Compressive Tests
1£®4£®3Centrifugal Wave Experiment
1£®5Recent Advances in Field Measurements
1£®6Recent Advances in Wave-Seabed-Structure Interactions £¨WSSIs£©
1£®6£®1Seawalls
1£®6£®2Breakwaters
1£®6£®3Pipelines
1£®6£®4Other Foundations
1£®7Challenges in Future Studies
2 Basic Seabed Mechanisms
2£®1Introduction
2£®2Wave Models
2£®2£®1Linear Wave Model
2£®2£®2Fully Non-Linear Wave Models
2£®3Wave-Induced Oscillatory Soil Response
2£®3£®1Yamamoto-Madsen Model
2£®3£®2Okusa £¨1985b£© Model
2£®3£®3Mei-Foda £¨1981£© Model
2£®3£®4u-p Approach
2£®3£®5u-U Approach
2£®3£®6Discussions£º Comparisons and Validation of the Models
2£®4Wave-Induced Residual Soil Response
2£®4£®11D Seed-Rahman Model
2£®4£®22D Seed-Rahman Model
2£®4£®3Poro-Elastoplastic Seabed Model
2£®5Progressive Nature of Wave-Induced Liquefaction
2£®5£®1Two-Layered Fluid Systems
2£®5£®2Poro-Elastoplastic Soil Model for Progressive Liquefaction
2£®6Solitary Wave over a Sloping Seabed
2£®6£®1Theoretical Model
2£®6£®2Comparison with Previous Works
2£®6£®3Results and Discussions
2£®7Coupled Model for Wave-Seabed Interactions
3 Soil Response in Marine Sediments under Combined Loading of Waves and Currents
3£®1Introduction
3£®2Flow Models for Wave-Current Interaction
3£®2£®1Analytical Solution£º Third-Order Approximation of Wave-Current Interactions
3£®2£®2Numerical Models of Wave-Current Interactions
3£®3Seabed Model
3£®3£®1Boundary Value Problem
3£®3£®2Analytical Solutions and Numerical Models
3£®3£®3Treatment of Lateral Boundary Conditions
3£®4Discussions
3£®4£®1Effects of Currents
3£®4£®2Seabed Liquefaction under Combined Wave and Current Loading
4 Integrated Model of Wave-Seabed Interactions around Caisson-Type Breakwaters
4£®1Introduction
4£®2Theoretical Model
4£®2£®1Wave Model
4£®2£®2Seabed Model
4£®2£®3Integration of Wave and Seabed Models
4£®3Validation of the Model
4£®3£®1Lu's £¨2005£© Experiment£º Progressive Waves
4£®3£®2Tsai and Lee's £¨1995£© Experiment£º Standing Wave
4£®3£®3Mizutani and Mostafa's £¨1998£© Experiment£º Submerged Breakwater
4£®3£®4Mostafa et al£®'s £¨1999£© Experiment£º Composite Breakwater
4£®4Application 1£º Seabed Response around Composite Breakwater under Ocean Wave Loading
4£®4£®1Consolidation of Seabed under Composite Breakwater and Static Water Pressure
4£®4£®2Dynamic Response of a Seabed
4£®4£®3Wave-Induced Momentary Liquefaction
4£®5Application II£º Water Waves over Permeable Submerged Breakwaters with Bragg Reflection
4£®5£®1Numerical Example Configuration
4£®5£®2Comparison with Experiments £¨Cho et al£® 2004£©
4£®5£®3Pore-Water Pressures
4£®5£®4Vertical Effective Stresses
4£®5£®5Liquefaction Potential
4£®6Application III£º Wave-Induced Dynamic Response in the Vicinity of a
Breakwater on a Sloping Seabed
4£®6£®1Wave-Seabed-Breakwater Interactions
4£®6£®2Wave-Induced Residual Liquefaction
5 Mechanics of Wave-Seabed-Pipeline Interactions
5£®1Introduction
5£®2Theoretical Formulations
5£®2£®1Wave Model
5£®2£®2Seabed Model
5£®2£®3Integration of Wave and Seabed Models
5£®3Validations of Theoretical Models
5£®4Oscillatory Soil Response around a Fully Buried Pipeline
5£®4£®1Oscillatory Soil Response in a Non-Homogeneous Seabed
5£®4£®2Internal Stresses of Pipeline
5£®4£®3Inertial Effects and Soil-Pipeline Contact Effects
5£®4£®4Effects of a Cover Layer
5£®5Residual Soil Response around a Buried Pipeline
5£®5£®1Wave-Induced Pore Pressure Build-Up around a Buried Pipeline
5£®5£®2Poro-Elastic Seabed Model of Wave-Induced Residual Liquefaction
5£®6Wave-Seabed-Pipeline Interactions in a Trench Layer
5£®6£®1Development of Liquefaction Potential
5£®6£®2Implementation for Practical Engineers
5£®7Improved Analysis Method for Wave-Induced Pipeline Stability
5£®7£®1Physical Phenomena of Pipeline Losing On-Bottom Stability
5£®7£®2Criteria for Pipeline On-Bottom Instability
5£®7£®3Procedure for Analysis of Wave-Induced Pipeline On-Bottom Stability
5£®7£®4Comparison with DNV Recommended Practice
6 Three-Dimensional Model of Wave-Seabed Interactions around Breakwater Heads
6£®1Introduction
6£®2Wave Field around Breakwater Heads
6£®2£®1Linear Wave Model
6£®2£®2Non-Linear Wave Model
6£®3Seabed Models
6£®3£®1Poro-Elastic Models of Oscillatory Soil Response
6£®3£®2Poro-Elastic Models of Residual Soil Response
6£®3£®3Poro-Elastoplastic Models
6£®4Results and Discussions
6£®4£®1Wave Diffraction
6£®4£®2Wave Obliquity
6£®4£®3Comparison of 1D and 3D Models
6£®4£®4Comparison between Poro-Elastic and Poro-Elastoplastic Models
6£®5Wave-Induced Oscillatory Soil Response around Two Breakwaters
7 Seabed Instability around Offshore Wind Turbine Foundations
7£®1Introduction
7£®2Monopile Foundation
7£®2£®1Seabed Model
7£®2£®2Wave Model
7£®2£®3Boundary Conditions
7£®2£®4Integrated Process
7£®2£®5Discussion£º Seabed Response around a Monopile
7£®2£®6Discussion£º Parametric Studies of Pore Pressure around the Monopile
7£®2£®7Discussion£º Effect of Wavelength on Pore-Water Pressure around a Monopile
7£®2£®8Discussion£º Soil Displacements
7£®2£®9Discussion£º Displacement of the Monopile
7£®3Case Study£º Donghai Offshore Wind Farm£¬ Shanghai£¬ China
7£®3£®1General Introduction of Donghai Offshore Wind Farm
7£®3£®2Characteristics of DH-OWF and Its Engineering Solutions
7£®3£®3Foundation of Donghai Offshore Wind Farm
7£®3£®4Numerical Model
7£®3£®5Discussion£ºEffects of Wave Parameters on Hydrodynamics
7£®3£®6Discussion£ºWave¡ªInduced Pore Pressure around HRSF
7£®3£®7Discussion£ºEffects of Wave and Soil Parameters on Soil Response
7£®3£®8Discussion£ºWave¡ªInduced Liquefaction around HRSF
8 Physical Modelling£ºOne-Dimensional Compressive Tests
8£®1Introduction
8£®2Experimental Facility
8£®3Experiments with a Sandy Deposit
8£®3£®1Materials
8£®3£®2Experimental Procedure
8£®3£®3Comparison with Previous Analytical Solution
8£®3£®4Discusslon£ºAttenuation and Phase Lag of Pore Pressures
8£®3£®5Discusslon£ºEffects of Wave Cycles
8£®3£®6Discussion£ºEfiects of Wave Period and Wave Height
8£®3£®7Discussion£ºEfiects of Relative Density and Saturation
8£®3£®8Discussion£ºSandy Deposit Liquefaction
8£®3£®9Discussion£ºVariations of Sandy Deposit Height
8£®4Experiments with Sand£®Clay Mixtures
8£®4£®1Experimental Details
8£®4£®2Discussion£ºEffects of Clay Content£¨cc£©
8£®4£®3Discussion£ºSettlement ofthe Deposit
Appendix A Analytical Solution for a Seabed of Finite Thickness£¨Hsu&Jeng1994£©
Appendix B Derivation of u-p Approximation£¨Jeng et a1£®1999£©
Appendix C Derivation of u-U Approximation£¨Cha et a1£®2002£©
Appendix D Mathematical Derivations of Analytical Solutions for Residual Soil Response£¨Jeng el a1£®2007£©
Appendix E Mathematical Model of the Two-Layered Viscous Fluid System£¨Liuet a1£®2009£©
References
AuthOFIndex
SubjectIndex