CONSTRUCTION METHOD FOR UNDERGROUND STRUCTURE USING PRESSED PIPE

摘要

PURPOSE: A jacking method of large-caliber steel pipe is provided to reduce construction costs and time and to secure high quality without excessive reinforcing work. CONSTITUTION: A jacking method of large-caliber steel pipe is as follows. A plurality of steel pipes(100) is buried in underground. One of one steel pipe is connected with a pair of wing members(110,120). A pair of wing members of an adjacency steel pipe(100a) is respectively united with each other. The sidewall of a domain is eliminated from the main body for a pair of wing members. The end part of the wing member located in the inner side is and welded with a core part of the wing member in order weld a part.