Water stop for joining member of concrete waterway timber, and joining method of concrete waterway timber

摘要

PROBLEM TO BE SOLVED: To provide a water cut-off joint member of a concrete channel member and a method of joining a concrete channel member wherein an object to be joined which is constituted of an existing concrete skeleton such as a box culvert, a three-way water passage, or an L- or reverse T-shaped channel is efficiently joined to a precast concrete joint object to cut off water so as to provide the concrete channel member for newly opening or expanding a channel.;SOLUTION: This water cut-off joint member of a concrete channel member includes a joint member body 1 formed of an elastic member, a flexible support piece part 2 arranged continuously to one side of the joint member body, an enlarged locking part 4 which is embedded, as a channel member, in the joint end 3 of the existing object to be joined A at the front end of the flexible support piece part 2 and provided so as to be fixed, a swelled projecting lock part 8 provided to the other end of the joint member body 1 so as to be inserted into a mounting hole 7 formed at the bottom of an opening end 6A exposed to the joint surface 5 of the joint object B, and space part 9 for cleaving provided in the thickness direction T of the joint member body 1 generally crossing the longitudinal direction I thereof.;COPYRIGHT: (C)2011,JPO&INPIT