| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method or the like for constructing a grade separated-viaduct approaching section capable of being carried out at a high speed. <P>SOLUTION: The grade separated-viaduct approaching section 1 is composed of an inter-girder section 4 for a floor slab built to support skeletons 2 and 3, an overhanging section 8 or the like. U-shaped retaining walls buried to the approaching section may also be used as the support skeletons 2 and 3 and the wall bodies of box culverts used as them 2 and 3 split bodies splitting the inter-girder section 4 for the laid floor slab and the overhanging section 8 are connected by a hinge 12 or the like, and have a mutually folded structure. When the overhanging section 8 is laid in a state that the overhanging section 8 is folded on the inter-girder section 4 by the hinge 12 when the floor slab is laid on the U-shaped retaining wall, a construction yard need not be widened because the overhanging section is removed, and a traffic-regulation width can be reduced minimally to an existing road immediately under the overhanging section. When the overhanging section 8 is developed by a crane on the inter-girder section 4, the bending moment can be changed rapidly into a structure capable of resisting by a surface, and days for a traffic regulation can be shortened largely. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
