MOVABLE BREAKWATER, MOVABLE WAVE BREAKING FACILITY, AND METHOD FOR ESTIMATING GAS LEAKAGE SECTION OF THE MOVABLE BREAKWATER

摘要

PROBLEM TO BE SOLVED: To detect a section of gas leakage occurred in the air supply pipe in a movable breakwater capable of letting a movable part float by supplying gas into the inside of the movable breakwater through an air supply pipe. SOLUTION: This movable breakwater 10 has an outer cylindrical pipe 11 and a floating pipe 12 arranged movably in the inside of the outer cylindrical pipe 11 and capable of floating by generating buoyancy by the gas supplied into its inside. The gas is supplied into a gas chamber 13 in an air supply pipe 3 through the air supply pipe 3 to let the floating pipe 12 float. A sensor 105 for detecting air supply pipe pressure is attached to the air supply pipe 3. By detecting change of pressure in the air supply pipe 3 by the sensor 105 for detecting air supply pipe pressure, leakage of the gas occurred in the air supply pipe 3 can be detected. COPYRIGHT: (C)2010,JPO&INPIT