RUBBLE THROW-IN AND LEVELLING DEVICE

PURPOSE:To make correction of non-land portion of a rubble surface unnecessary and realize construction at a servere wave condition place and improve work efficiency by conducting simultaneously rubble throw-in and its top face levelling. CONSTITUTION:A tremie pipe 4 is provided on a travel truck 50 on a rubble supply ship 2 through a universal joint 5. Also, a scattering preventing skirt 12 of a cylindrical shape made of rubber is fitted to the lower portion of the tremie pipe 4, and right under this, an levelling robot 3 having a hopper 13 whose positioning movement is free, and a chute 14 to make rubbles from the hopper 13 flow out to the water bottom, is provided. Herein, the hopper 13 and the tremie pipe 4 lower portion are not connected to each other, and constitution is made so that a robot 3 motive power cable 25 alone is connectable to the rubble supply ship 2. Under the condition of the ship 2 being moored by means of plural wire ropes 1, rubbles are thrown in through a hopper 6 and introduced into the hopper 13. Simultaneously, the robot 3 is made to travel on the water bottom, and rubbles are made to flow out of the chute 14 while the chute 14 is being moved horizontally.