JOINING STRUCTURE FOR PROPELLED PIPE

摘要

PROBLEM TO BE SOLVED: To provide a joining structure for propelled pipes wherewith pipes for stabilizing repair works for preventing subsidence of earth structure such as a bridge approach road or the like constructed with embankment on a soft ground for a bridge can be buried in laying by jacking pipes efficiently in a short period of time without allowing the joined parts to be broken or bent and also without disturbing traffic on a road over the work site. SOLUTION: A joining structure for propelled pipes to be used for making an earth structure lightweight is such a one wherewith the propelled pipes are joined together and propelled by jacking into the earth structure from its external side faces and the pipes are buried in the earth structure. The ends of the opposite propelled pipes 1 and 1' are joined together by an inner collar 2 comprising rubber rings 21 and 21 in contact with the inner circumferential face of the pipes and a cylindrical body 22 bearing the rubber rings 21 and 21.