WATER STOP STRUCTURE OF TEMPORARY FLOATING COFFERDAM AND FLOATING COFFERDAM STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a water stop structure of a temporary floating cofferdam and a floating cofferdam structure in which blocks constituting a temporary cofferdam structure are made to reliably follow the unevenness of a dam and water stopping property between the temporary cofferdam structure and the dam can be secured.;SOLUTION: A U-shaped rubber gasket 21 is disposed at the end part 17 which is a portion opposed to a wall surface 67 of a dam 69 of a temporary cofferdam structure 1 constituted of a bottom part 5 and a side wall part 7, and having a portion of side surface opened. Wood 19 with a thickness thinner than that of the rubber gasket 21 is disposed at both sides of the rubber gasket 21. The wall surface 67 of the dam 69 is coated by a putty-shaped member, and the temporary cofferdam structure 1 is installed to the wall surface 67 of the dam 69, while bringing the wood 19 and the rubber gasket 21 into contact with a portion coated by the putty-shaped member, and thereby a temporary cofferdam structure 2 is formed. Then, the rubber gasket 21 is compressed and deformed to the thickness of a degree equal to the wood 19, and thereby a water stop structure 15 is formed between the temporary cofferdam structure 1 and the dam 69.;COPYRIGHT: (C)2015,JPO&INPIT