ASEISMIC PROPULSION PIPE JOINT

摘要

PROBLEM TO BE SOLVED: To prevent the increase of the resistance in propulsion on the basis of the flow of sediment in laying an aseismic pipe in the ground by the propulsion method. SOLUTION: A spigot 14 formed on an end part of one of armor pipes 13 for propulsion method is inserted into a socket 12 formed on an end part of the other armor pipe 11 to be joined to the pipe 13, and the pipe moving force in laying a pipe conduit can be conducted between the socket 12 and the spigot 14. An aseismic structure having a separation preventing function and an expanding and contracting function exists between the socket 12 and the spigot 14. A cover 35 for preventing the flow of sediment is wound from an outer periphery of an armoring part 31 of the pipe 13 at the spigot 14 side to an outer periphery of the socket 12. The cover 35 is fixed to the outer periphery of the armoring part 31 of the pipe 13 at the spigot 14 side or the outer periphery of the socket 12.