ARCH TUNNEL, AND CONSTRUCTION METHOD AND BOTTOM SLAB BLOCK FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide bottom slabs for arch tunnel capable of efficiently constructing an arch tunnel in a short time. SOLUTION: This arch tunnel 10 is constructed by arranging curved bottom slab blocks 14 opposite to each other, and unifying them by placing concrete at a construction field so as to construct an inverted arch bottom slab 11 projected downward, and installing curved slabs 12 on both upper ends 14b of both circumferential ends of the bottom slabs 11 so as to form an arch part 13. Construction method and the bottom slab block 14 for constructing the bottom slabs 11 of the arch tunnel 10 are provided for the arch tunnel.