Analysis of jacket pile failure at breasting dolphin pile on berthing dolphin system

The study evaluated the structural damage of the jetty pile jacket due to the impact load within operation days. The pile jackets on breasting dolphin (BD) were destroyed in front of pneumatic floating fender or leaning back direction. It observed that the failure was due to an impact load perpendicular to the pile and shear load between the floating fender and the pile jacket. The polyolefin material for pile jacket is not designed to hold any impact load from pneumatic fender vertically during docking. The pile jacket was installed to protect against to corrosion attack between tidal and splash zone. While the coal barge is docking on the jetty, the floating fender will crash and push the pile jacket by impact load at about 13.88 ton.m and swing press perpendicular to the breasting dolphin pile or shear load vertically. The installation of rack fender may practically protect the breasting dolphin pile and to back up currently pneumatically floating fender and the jacket pile. (paper)