Method for lining an existing pipe and collar for protecting a lining material

摘要

A tubular lining material for an existing pipe is comprised of a flexible resin absorber impregnated with a liquid setting resin and is radially spread out at one end part to form a plurality of cut pieces. A flange of a flexible resin absorber impregnated with a liquid setting resin is stacked on the cut pieces and brought into pressure contact with a surface surrounding the pipe opening of the existing pipe before the lining material is evertedly inserted into the existing pipe. The liquid setting resin in the flange and the cut pieces is cured and fixed to the surrounding surface of the pipe opening of the existing pipe. Such an arrangement enables the complete sealing of a gap between the inner circumference of the existing pipe and the outer circumference of the lining material at the circumferential edge part of the pipe opening of the existing pipe because the flange is cured in conformation to t the surrounding surface of the pipe opening of the existing pipe.