Different rigid tube , junction structure of coastal protection structures , removal method of laying methods and coastal protection structure of coastal protection structure .

摘要

PROBLEM TO BE SOLVED: To provide a different hardness tube which is in an easy-to-manufacture simple structure and can be laid without a gap or a step at a junction of a coastal protection structure, and a laying technology of the coastal protection structure.;SOLUTION: A different hardness tube for the coastal protection structure, in which a filler is enclosed, comprises: a tubular cylindrical body opened at both ends; a plurality of fill/drain ports provided on a part of the cylindrical body so as to fill the filler inside the cylindrical body; and a closing bag attached to at least one end part opening of the cylindrical body. The cylindrical body and the closing bag are formed of different materials with different hardness, and the closing bag is formed of a soft material compared to the flexible cylindrical body.;COPYRIGHT: (C)2013,JPO&INPIT