PRECAST CONCRETE FLOOR SLAB, METHOD OF SETTING THE SAME, AND TUNNEL FLOOR STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a tunnel floor structure which simplifies construction of a floor of a tunnel dividing the interior of the tunnel. SOLUTION: The tunnel floor structure is formed of bearers 1 mounted on both sides of the tunnel, a precast concrete floor slab 2 set astride the bearers 1 mounted on both the sides of the tunnel, and notched portions 21 formed at both ends of the precast concrete floor slab such that ends of the respective adjacent precast concrete floor slabs overlap each other. Then the precast concrete floor slabs 2 are bedded in the tunnel astride the bearers 1, whereby the interior of the tunnel is divided into upper and lower sections. COPYRIGHT: (C)2005,JPO&NCIPI