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Offshore platforms have become increasingly important to the oil and gas industry. As part of normal operating activities they are repeatedly visited by heavy vessels. This makes the rig vulnerable to collisions from these vessels. Estimating the possible ship collision damage is important in the safety and integrity assessment of a platform and also for its repair and maintenance. This book deals with the structural behaviour of tubular members of offshore structures subjected to ship collision. It covers both quasi-static and dynamic impact loadings and considers different approaches such...

This book is devoted to an engineering case study on an important, yet problematic, sea dike which crosses the Lake Urmia in Iran. This dike-type causeway appears to be an interesting case for studying the dike's long-term behavior and their hydrodynamic/geological effects. The Lake Urmia dike is around 14 km long and begun being constructed in 1979. It was designed to provide road and railway access crosswise the lake. It virtually divided the lake in two smaller northern and southern lakes. Lake Urmia is itself a very sensitive hyper-saline aquatic body. This shallow marine ecosystem is the...