WATERPROOFING CONSTRUCTION METHOD FOR BALLAST TRACK FLOOR SLAB IN ELEVATED RAILROAD BRIDGE AND POURING DEVICE FOR AQUEOUS WATERPROOF AGENT USED IN THE SAME

摘要

PROBLEM TO BE SOLVED: To efficiently waterproof a ballast track floor slab surface in an elevated railroad bridge. ;SOLUTION: In a construction method in which aqueous waterproof agent of rubber asphalt emulsion is poured into ballast on a floor slab of the elevated railroad bridge, a rotary shaft 9 of a rotary driving machine 4 is connected with an upper face of a pouring pipe 1 provided with 8 spiral 5 on an outer side face, the rotary driving machine 4 is gripped to fit and rotate the pouring pipe 1 from an upper face of the ballast, the rotary driving machine 4 is removed from the pouring pipe 1 when a tip part of the pouring pipe 1 reaches a predetermined depth of the ballast, and aqueous waterproof agent of rubber asphalt emulsion is poured from an open part on the upper face of the pouring pipe 1 to diffuse, permeate, and solidify the aqueous waterproof agent on an upper face of the floor slab so as to provide a waterproofing construction method for ballast track floor slab in the elevated railroad bridge.;COPYRIGHT: (C)2001,JPO