METHOD FOR REMEDYING PIPE LINE

PROBLEM TO BE SOLVED: To provide a method for remedying a pipe line by a backing technique capable of performing the technique even in relatively small diameter pipe line. SOLUTION: A guide belt 44 and a speed-controlling belt are bound to one edge part of a cylindrical lining material 30, the guide belt 44 is passed through the lining material 30 and extended from the other edge part of the lining material 30, and further extended to an exploration way through a drain pipe. The speed-controlling belt is extended to an inverting device and wound to a winding axis of the inverting device together with the lining material 30. The lining material 30 is inverted by a pressure of the inverting device, and the lining material 30 is introduced into a drain pipe 16 whose top edge is up to an inverting surface 30'. The lining material 30 is guided by stretching suitably the guide belt during passing through elbow parts 16a, 16b, 16c, 16d and 16e, so that it can be passed through the elbow parts 16a, 16b, 16c, 16d and 16e. The speed-controlling belt is coated with a protecting tube in order to protect a sealed film layer on a surface of the lining material 30 after inversion. COPYRIGHT: (C)2008,JPO&INPIT