DREDGING BASE SHIP CAPABLE OF RECIPROCAL EXCAVATION

摘要

PURPOSE:To permit dredging operations to be performed all the time regardless of the moving direction of a dredging base ship by a method in which a sucker is connected through a flexible hose and a ball joint to the tip of a transport tube provided downwards from the dredging base chip. CONSTITUTION:A transport tube 5 is provided downwardly in water from a dredging base ship 1, and a flexible hose 14 is connected to the tip of the tube 5. A sucker 13 is attached to the tip of the hose 14 in a vertically rocking manner. An air supply tube 7 is also connected through the base ship 1 to the neighborhood of the connection between the tube 5 and the hose 14. The sucker 13 is suspended from the ship 1 by a cable 21 and follows the moving direction of the ship 1 during dredging operation only by altering the direction of the hose 14. The reciprocal dredging operation of the dredging ship can thus be made possible.