Abstract
Ice Scour Event is a phenomenon that occurs when ice comes into contact with seabed. Ice scour has been reported to have caused damage to communication cables and water intake pipelines. Since oil and natural gas exploration projects in offshore areas of arctic seas are becoming popular, more care must betaken over the design and installation of oil pipelines in such areas in order to avoid accidents due to ice scour. It will be very important to acknowledge mechanisms (ice motions, sub-seabed conditionsongouge events). In addition to our previous tests including the medium-scale model test (Kioka et. al., 2000, 2001), we have performed many series of model tests under various conditions. We examined the main factors for Scour-process, and obtained many results needed for future work (numerical simulation of Ice scour event). We also examined the control methods of test conditions due to an excess pore water pressure that influence the scour process, including scale-effect.
