EXECUTION METHOD FOR WATER BOTTOM FOUNDATION AND LEVELLING DEVICE FOR WATER BOTTOM FOUNDATION

摘要

PURPOSE:To make it possible that execution of work is efficiently performed without placing reliance on a driver by dumping foundation stone into a chute provided with a cutter gate, lifting the chute after the cutter gate is closed, and transversely moving. CONSTITUTION:A cutter gate 20 capable of opening and closing is mounted at the bottom opening of a chute 10 whose top and bottom are opened. And the chute 10 is vertically supported freely ascendable by the vertical guide 31 of a work boat 30 provided with a feed hopper 32 and a conveyor 31. And the chute 10 is transversely moved by the work boat 30, and the foundation stone 40 is dumped into the chute 10 in the state that the cutter gate 20 is opened. And, after the foundation stone in the chute 10 is compacted by a roller, etc., the lower opening of the chute 10 is closed by operating the cutter gate 20. Then, the chute 10 is vertically lifted with the lower opening kept closed by the cutter gate 20 and transversely moved till next span position, and the same process is repeated to evenly level the foundation stone 40.