Renewed construction method of existing road and rebuilt road

摘要

PROBLEM TO BE SOLVED: To provide a renewal method for an existing road that curtails a period needed for the renewal work of the existing road, along with a road renewed by the renewal method.SOLUTION: A renewal method for an existing road is for renewing an existing road 10 having a reinforced concrete floor slab 2 installed on two or more steel main girders 1. The renewal method for an existing road includes: a first step in which only a portion 4 of the floor slab 2 lying on the main girder is left as is, and the other portions are removed; and a second step in which a new floor slab block 6 having two or more recesses 6a on an undersurface is installed such that each of the recesses 6a is placed on the portion 4 on the two or more main girders, and the installation process of the floor slab block 6 is repeated in a direction of extension of the road, for constructing a renewed road 20.SELECTED DRAWING: Figure 4