CABLE LAYING CONSTRUCTION METHOD AND LUBRICANT APPLYING DEVICE AND CLEANING DEVICE USED IN CABLE LAYING CONSTRUCTION METHOD

摘要

PURPOSE: To prevent buckling of a cable when the cable is laid by cable laying devices arranged with respective manholes. ;CONSTITUTION: Cable laying devices 1 to lay a cable while sandwiching the cable C by left and right rotary bodies, are arranged with respective manholes M₁ to M₄. Cable buckling preventive guide pipes 10 which are composed of a cylindrical part inside which the cable is inserted and a diametrically expansive part whose diameter is gradually expanded by being formed on one end of this cylindrical part and in which the other end side of the cylindrical part is formed as a fixing part to be fixed to an inlet of a pipe line, are fixed to inlets of cable laying pipe lines K₁ to K₃ arranged in the respective manholes. The cable laying devices 1 are arranged in positions in close vicinity to the diametrically expansive parts of the guide pipes 10, and the cable C is laid. The cable is corrected on this side of the inlets of the pipe lines by the guide pipes 10, and the cable C is bent on this side of the pipe line inlets, and is not buckled by exceeding an allowable bend radius.;COPYRIGHT: (C)1995,JPO