VIBRATION-PROOF AND FIREPROOF WORK EXECUTION METHOD OF DRAIN PIPE, COVERING MATERIAL AND DRAIN PIPE JOINT

摘要

PROBLEM TO BE SOLVED: To prevent the propagation of the vibration and the noise caused by the vibration to dwellings nearby when the vibration is generated in a drain pipe while the refractory and fireproof performance is kept. SOLUTION: When a drain pipe is inserted in a slab penetrating hole H in the thickness direction of a slab, a metallic covering material A is wound around a drain pipe body P through a vibration control elastic body 3 and fixed thereto, and the drain pipe is formed on each end part side of the covering material A in the longitudinal direction of the drain pipe body P in a condition where a refractory elastic body 4 is interposed and held so that the drain pipe is closely attached to each side of the covering material A and the drain pipe body P. In addition, the hardening filler D is filled and fixed between the covering material A to be wound around the drain pipe body P and fixed thereto and the slab penetrating hole H in a condition where the drain pipe is inserted in the slab penetrating hole H.