CABLE PROTECTIVE PIPE AND ITS PIPING METHOD

摘要

PROBLEM TO BE SOLVED: To see that the supporting span by a carriage is large and that a cable protective pipe does not float at filling of mortar into a propulsive pipe, in arrangement of the cable protective pipe for a sharp curve.

SOLUTION: In the cable protective pipe which is provided with a socket 2 at one end of its main body 1 and a spigot 3 at the other end, the above main body 1 is constituted of a plurality of short pipes 4 and coupling members 5 for connecting short pipes 4, and in arrangement of the pipes, short pipes 4 alternately arranged between connecting pipes are supported with the carriage.

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