CONSTRUCTION METHOD FOR VIADUCT

PROBLEM TO BE SOLVED: To rapidly construct a viaduct without high altitude work. SOLUTION: A cylindrical body unit 10 for a bridge pier is installed on a footing part A, and a bridge support part C is constructed at the upper part. Cylindrical body units 20 are installed at the opposed faces of the support part C. A hardenable filler 12 is then injected into the unit 10. When the filler 12 is injected, the unit 10 is sequentially elongated in a vertical direction, and when the vertical movement is regulated by a stopper, the injection of the filler 12 is stopped. When the filler 12 pressed into the unit 10 is hardened, a bridge pier part B is formed. The filler 12 is then injected in a prescribed pressure state into each unit 20 to simultaneously elongate each unit 20 in the horizontal direction. When the filler 12 pressed into each unit 20 is hardened, a bridge part D is formed to complete the construction of the viaduct E for one span. COPYRIGHT: (C)2004,JPO&NCIPI