A LINING SYSTEM AND METHOD FOR INSTALLING A PLASTIC LINER

摘要

A method for installing plastic liners (20) with protuberances in pipes (40) includes the steps of providing a cylindrical tubular liner (20) with protuberances of plastic material of predetermined diameter and fixed in position in a bond with the existing pipe (40) by application of a liquefied grouting material (50). The protuberances extend radially from the liner (20) and provide the grouting cavity. The liner (20) with protuberances is collapsed or deformed into a drastically reduced shape to reduced overall diameter. The liner (20) with protuberances is introduced into the existing pipe (40). The cylindrical shape of the liner (20) with protuberances is then restored with protuberances spacing the liner (20) from the existing pipe (40). Grout (50) is injected into the annulus between the liner (20) and the existing pipe (40), bonding the liner (20) to the pipe (40).