| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pipe joint structure for surely performing sealing performance of a joint part in jacking work of the ground and the large depth particularly much in underground water in the joint structure of a jacking pipe. <P>SOLUTION: This pipe joint structure is arranged in a pipe connecting place used for a pipe jacking method, and has a projecting ring extending in the jacking direction from a pipe end surface in one pipe among a pair of mutually connecting pipes, and is composed of a connecting cylinder arranged in a pipe end part in the other pipe, and having a diameter contracted smaller than an inner diameter of the projecting ring, a sealing belt body arranged in the circumferential direction on the outer periphery of the connecting cylinder, and deformable by abutting to an inside surface of the projecting ring, and a deforming belt body arranged in the circumferential direction on the outer periphery in the rear of the connecting cylinder, and having an outer diameter larger than the inner diameter of the projecting ring. <P>COPYRIGHT: (C)2003,JPO |
