THROW-IN METHOD AND THROW-IN SYSTEM OF THROW-IN MATERIAL, AND CONSTRUCTION METHOD OF WATER BOTTOM STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a throw-in method of a throw-in material and a throw-in system of the throw-in material stabilizing throw-in of the throw-in material by an earth carrier and reducing a loss rate of the throw-in material grounded deviating from a target position.;SOLUTION: In the throw-in method of the throw-in material, the flow direction/flow velocity of a site water area where a water bottom structure is formed, is measured when carrying the throw-in material for forming the water bottom structure at the water bottom, by the earth carrier and throwing it into the water to fall free, and the optimum throw-in position of the throw-in material in the earth carrier for grounding the throw-in material into the target position of the water bottom is analyzed and computed based on the target position, the flow direction/flow velocity and the advancing speed/flow direction of the earth carrier. The earth carrier is advanced toward the optimum throw-in position in the advancing direction/at the advancing speed obtained when computing the optimum throw-in position, and the throw-in material is thrown in from the advancing earth carrier when the measured position of the advancing earth carrier almost coincides with the optimum throw-in position.;COPYRIGHT: (C)2008,JPO&INPIT