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The ocean is the cradle of life and is rich in natural resources. With the worldwide boom in exploration and application of ocean resources, a dramatically increasing amount of coastal engineering and offshore engineering facilities have been constructed in the last few decades. The rapid development of human economic activities and the global climate change have significant impacts on the marine environment, resulting in frequent geological disasters. Under this circumstance, there is an urgent demand for a platform for scientists and engineers to share their state-of-art research outcomes in the field of Marine Engineering Geology. This book is a collection of a series of articles from the 2nd International Symposium of Marine Engineering Geology (ISMEG 2019), presenting some of the recent efforts made towards marine engineering geology and geotechnics, including theoretical advances, laboratory and field testing, design methods, and the potential for further development of these disciplines.

marine soft soil --- double-layer foundation --- consolidation theory --- drainage boundary --- spudcan --- skirted footing --- footprint --- jack-up --- clay --- large deformation analysis --- coral sands --- porous media --- model test --- dispersion --- mechanical dispersion --- molecular diffusion --- soft clay --- cyclic loads --- residual pore pressure --- suction anchor --- wave --- seafloor instability --- pore pressure --- slide surface --- gas distribution --- meshfree method --- Varans --- Biot’s “u − p” approximation --- wave-current induced seabed response --- immersed tunnel --- sediment liquefaction --- heavy metal --- migration --- interior of sediment --- the subaqueous Yellow River Delta --- ocean waves --- double-frequency microseisms --- continental margin --- continental slope --- coral sand --- Fujian sand --- shaking table test --- dynamic response --- pile group --- marine engineering --- seismic liquefaction --- novel liquefaction-resistant structures --- mitigation strategies --- sand wave --- pressure sensing technique --- physical model test --- field application --- wingsail --- aerodynamics --- numerical simulation --- marine silty sand --- small-strain stiffness --- Hardin model --- binary packing model --- dredging and reclamation --- constitutive relationship --- centrifugal experiment --- void ratio–effective stress --- void ratio–permeability coefficient --- n/a --- Biot's "u − p" approximation --- void ratio-effective stress --- void ratio-permeability coefficient

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The ocean is the cradle of life and is rich in natural resources. With the worldwide boom in exploration and application of ocean resources, a dramatically increasing amount of coastal engineering and offshore engineering facilities have been constructed in the last few decades. The rapid development of human economic activities and the global climate change have significant impacts on the marine environment, resulting in frequent geological disasters. Under this circumstance, there is an urgent demand for a platform for scientists and engineers to share their state-of-art research outcomes in the field of Marine Engineering Geology. This book is a collection of a series of articles from the 2nd International Symposium of Marine Engineering Geology (ISMEG 2019), presenting some of the recent efforts made towards marine engineering geology and geotechnics, including theoretical advances, laboratory and field testing, design methods, and the potential for further development of these disciplines.

Technology: general issues --- marine soft soil --- double-layer foundation --- consolidation theory --- drainage boundary --- spudcan --- skirted footing --- footprint --- jack-up --- clay --- large deformation analysis --- coral sands --- porous media --- model test --- dispersion --- mechanical dispersion --- molecular diffusion --- soft clay --- cyclic loads --- residual pore pressure --- suction anchor --- wave --- seafloor instability --- pore pressure --- slide surface --- gas distribution --- meshfree method --- Varans --- Biot’s “u − p” approximation --- wave-current induced seabed response --- immersed tunnel --- sediment liquefaction --- heavy metal --- migration --- interior of sediment --- the subaqueous Yellow River Delta --- ocean waves --- double-frequency microseisms --- continental margin --- continental slope --- coral sand --- Fujian sand --- shaking table test --- dynamic response --- pile group --- marine engineering --- seismic liquefaction --- novel liquefaction-resistant structures --- mitigation strategies --- sand wave --- pressure sensing technique --- physical model test --- field application --- wingsail --- aerodynamics --- numerical simulation --- marine silty sand --- small-strain stiffness --- Hardin model --- binary packing model --- dredging and reclamation --- constitutive relationship --- centrifugal experiment --- void ratio–effective stress --- void ratio–permeability coefficient --- n/a --- Biot's "u − p" approximation --- void ratio-effective stress --- void ratio-permeability coefficient

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Recent industrial criteria increasingly require the production of multi-material components. However, the manufacturing requirements of these components are not met by conventional welding techniques. Alternative solid-state technologies, such as impact-based processes, must be considered. The impact welding family is composed of several processes, such as explosion welding, magnetic pulse welding, vaporizing foil actuator welding, and laser impact welding. These processes present very different length scales, providing the impact welding family with a broad applicability range. A sample of the cutting-edge research that is being conducted on the multidisciplinary field of impact welding is presented in this book.

dissimilar materials --- interlayer --- vaporizing foil actuators welding --- impact welding --- impact velocity --- impact angle --- welding interface --- flyer velocity --- energy efficiency --- peak velocity --- flyer rebound --- flyer size --- confinement layer --- explosive welding --- Ti6Al4V/Al-1060 --- microstructure --- mechanical properties --- smooth particle hydrodynamic (SPH) --- high-velocity impact welding --- smoothed particle hydrodynamics simulation --- welding window --- gelatin --- thin aluminum plate --- magnesium alloys --- LPSO phase --- cellular metal --- composite structure --- unidirectional cellular metal --- explosive compaction --- high-energy-rate forming --- tantalum/copper/stainless steel clads --- severe plastic deformation --- SEM/EBSD --- microhardness --- magnetic pulse welding --- dissimilar metals --- surface preparation --- interface --- aluminum --- carbon steel --- stainless steel --- collision welding --- pressure welding --- process glare --- jet --- cloud of particles --- shock compression --- surface roughness --- collision conditions --- model test rig --- welding mechanisms --- n/a

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This book presents 16 selected papers from the 7th International Conference on The Application of Physical Modelling in Coastal and Port Engineering and Science, Coastlab18. The conference was organized in Santander, Spain, from 22 to 26 May, 2018, by the Instituto de Hidráulica Ambiental de la Universidad de Cantabria, IHCantabria. Coastlab18 welcomed 175 attendees from 18 different countries. The technical program included three renowned keynote lectures and 120 presentations focused on theoretical and practical aspects related to physical modelling in the field of coastal and ocean engineering. Coastal and ocean structures, breakwaters, revetments, laboratory technologies, measurement systems, coastal field measurement and monitoring, combined physical and numerical modelling, physical modelling case studies, tsunamis, and coastal hydrodynamics were the main topics covered in the conference. This book attempts to cover, as completely as possible, all the topics presented during the conference. The papers were accepted after a peer-review process based on their full text.

History of engineering & technology --- hydraulic stability --- breaking wave conditions --- low-crested structures --- mound breakwaters --- armor layer --- overtopping --- dikes --- sea defenses --- bimodal seas --- swell --- oblique waves --- crossing seas --- wave basin --- mound breakwater --- armor stability --- Cubipod® --- breaking waves --- non-overtopping --- horizontal foreshore --- regular waves --- Stepped revetment --- wave impact --- physical model test --- rock slopes --- damage characterization --- damage parameters --- physical model tests --- linear waves --- nonlinear waves --- wavemaker theory --- wavemaker applicability --- outdoor wave basin --- long-term development --- vegetation development --- ecosystem services --- nature-based --- vertical barrier --- semi-submerged --- wind waves --- experiments --- laboratory --- operational system --- wave forecast --- wave modelling --- Mediterranean Sea --- monitoring program --- beach management --- bichromatic waves --- reflection separation --- bound waves --- stability --- erosion --- sea level rise --- repetition tests --- berm --- wave flume --- length effect --- aquaculture --- drag --- inertia --- Abbott–Firestone Curve --- laboratory tests --- physical model experiments --- scouring --- shingle foreshore --- sloping wall --- combined field experiment and numerical modeling --- overwash --- wave run-up --- infragravity waves --- XBeach --- coastal flooding --- dune erosion --- landslide waves --- tsunamis --- laboratory experiments --- momentum balance --- numerical wave modeling --- vertical cylinder --- DNS model --- pressure gradient --- wave force --- scour and shear stress --- n/a --- Abbott-Firestone Curve

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With rapid developments being made in the exploration of marine resources, coastal geohazard and offshore geotechnics have attracted a great deal of attention from coastal geotechnical engineers, with significant progress being made in recent years. Due to the complicated nature of marine environmnets, there are numerous natural marine geohazard preset throughout the world’s marine areas, e.g., the South China Sea. In addition, damage to offshore infrastructure (e.g., monopiles, bridge piers, etc.) and their supporting installations (pipelines, power transmission cables, etc.) has occurred in the last decades. A better understanding of the fundamental mechanisms and soil behavior of the seabed in marine environments will help engineers in the design and planning processes of coastal geotechnical engineering projects. The purpose of this book is to present the recent advances made in the field of coastal geohazards and offshore geotechnics. The book will provide researchers with information reagrding the recent developments in the field, and possible future developments. The book is composed of eighteen papers, covering three main themes: (1) the mechanisms of fluid–seabed interactions and the instability associated with seabeds when they are under dynamic loading (papers 1–5); (2) evaluation of the stability of marine infrastructure, including pipelines (papers 6–8), piled foundation and bridge piers (papers 9–12), submarine tunnels (paper 13), and other supported foundations (paper 14); and (3) coastal geohazards, including submarine landslides and slope stability (papers 15–16) and other geohazard issues (papers 17–18). The editors hope that this book will functoin as a guide for researchers, scientists, and scholars, as well as practitioners of coastal and offshore engineering.

Technology: general issues --- wave motion --- offshore deposits --- seabed response --- FEM --- pore pressure --- wave-current-seabed interaction --- RANS equations --- k-ε model --- current velocity --- seabed liquefaction --- liquefaction --- lateral displacement --- response surface method (RSM) --- artificial neural network (ANN) --- wave action --- silty sand --- seepage flow --- soil erosion --- pore-pressure accumulation --- three-phase soil model --- immersed tunnel --- trench --- numerical study --- porous seabed --- pumping well test --- groundwater fluctuation --- stratum deformation --- micro-confined aquifer --- wave–current–seabed interaction --- Reynolds-Averaged Navier-Stokesequations --- buried pipeline --- k-ε turbulence model --- oscillatory liquefaction --- wave-soil-pipeline interactions --- meshfree model --- local radial basis functions collocation method --- hydrate-bearing sediments --- damage statistical constitutive model --- multi-field coupling --- wellbore stability --- bridge scour --- identification --- ambient vibration --- field application --- natural frequency --- mode shape --- superstructure --- cable-stayed bridge --- Principal stress rotation --- dynamic loading --- wave (current)-induced soil response --- open-ended pile --- soil plug --- offshore wind turbines --- lateral cyclic loading --- model test --- discrete element simulation --- rock-socketed piles --- monopiles --- impedances --- dynamic responses --- buoyancy --- bottom-supported foundation --- field test --- numerical analysis --- giant submarine landslides --- shelf break --- South China Sea --- Himalayan orogeny --- repeated submarine landslides --- coastal-embankment slope --- stability --- unsaturated soil --- multilayered --- matric suction --- random searching algorithm --- rainfall infiltration --- scour --- soft clay --- monopile --- stress history --- hypoplastic model --- submarine pipeline --- dense seabed foundation --- seismic dynamics --- resonance of submarine pipeline --- FSSI-CAS 2D --- n/a