RECONSTRUCTION METHOD AND DEVICE OF UNDERGROUND BURIED PIPE

摘要

PROBLEM TO BE SOLVED: To provide a reconstruction method and device of an underground buried pipe that can reliably excavate the underground buried pipe that has already been buried and can bury a new underground buried pipe at the same position. SOLUTION: A chain type cutter 3 and an excavation blade 2a are provided in a guide pipe 7, an exhaust pipe 5 for feeding a crushed soil backward is provided, a newly installed underground buried pipe 9 is connected to the rear of an excavator 2, and the rear end of the newly installed underground buried pipe 9 is pushed.