-The instability of
coastal and offshore structures is induced primarily by the action of
oscillatory and impact forces caused by waves such as Tsunamis and strong
ocean currents that are extreme cases of severe waves.
-The
geotechnical aspects play a significant role in the initiation of these
instabilities. Thus, the evaluation of waveinduced response of seabed
around structure-foundation systems plays a key role in mitigation of the
associated hazard.
-Unfortunately,
as is the case in other fields, the processes governing the response and
instability of geomaterials encountered in marine environment are dynamic,
nonlinear, and hence quite complex.
-During
the past decades, progress has been made towards understanding of these processes
and their impact on the stability of marine infrastructure.
-There
still remains a significant need for a comprehensive study to understand
the underlying mechanics, formulate models, and develop computational tools
for the response and instability of some very important structure-seabed
systems.