REPLACING APPARATUS FOR LEAD PIPE

摘要

PROBLEM TO BE SOLVED: To easily lay a new pipe having a bore larger than that of an existing pipe without recovering the existing pipe from underground when the existing pipe is replaced with the new pipe by a non-cut-and-cover tunneling method. SOLUTION: This replacing apparatus 2 for lead pipes for replacing the lead pipe 1 embedded in the ground with the new pipe 12 comprises both a cutting part 3 capable of cutting the lead pipe 1 along the direction of its axis and a flaring part 4 capable of being passed through the cut lead pipe 1 and enlarging the diameter of the lead pipe 1.