Pipe and cable laying method comprises feeding breaking head though existing pipe and breaking it up, widening resulting bore and feeding in new pipe and parallel cables

摘要

The method for laying pipes and cables without excavation comprises feeding a breaking head (11) though an existing pipe (2) and breaking it up. The resulting bore is widened and a new pipe (15) and parallel cables (17) are fed in. An Independent claim is included for a device for carrying out the above method.