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This two day course introduces you to wave-induced liquefaction in the marine environment and its effects on structures. Although the focus will be on wave-induced liquefaction, a brief introduction to seismic-induced liquefaction will be also included. The physics of wave-induced liquefaction and mathematical modelling will be described. Potential threats to marine structures will be discussed. Counter-measures will be included in the discussions. Discussions will be supplemented by video movies from the CD-ROM accompanying the book Liquefaction Around Marine Structures by B. Mutlu Sumer.
Liquefaction refers to the state of the soil in which the effective stresses between individual soil grains vanish and the water–sediment mixture as a whole, therefore, acts like a fluid. Under this condition, the soil fails, therefore precipitating failure of the supported structure such as pipelines, sea outfalls, breakwaters, seawalls, pile structures, gravity structures, rock berms, etc. A clear hydrodynamic/geodynamic understanding makes it relatively easier for a consulting engineer to assess liquefaction potential, to make engineering predictions and recommendations as to how to avoid potential risks. This course essentially addresses these issues.
- Physics of wave-induced liquefaction
- Residual liquefaction and its modelling
- Momentary liquefaction and its modelling
- Floatation/sinking of pipelines and other marine objects under waves
- Liquefaction under standing waves
- Liquefaction in cohesive soils (sand-clay and silt-clay mixtures)
- Failure of gravity based structures due to liquefaction
- Counter-measures against liquefaction failure
Target groups and prerequisites
Professionals in hydraulics, geotechnics or engineering and management, working with design, installation and commissioning of marine structures; researchers in coastal, ocean and marine civil engineering; graduate and post graduate students. You should preferably have a background in coastal, port or marine civil engineering.
For more information, do not hesitate to contact us.