PRECAST BOARD FOR SECONDARY LINING ON INNER SURFACE OF TUNNEL AND SECONDARY LINING CONSTRUCTION USING IT

摘要

PROBLEM TO BE SOLVED: To provide a precast board for secondary lining on the inner surface of the tunnel capable of improving the anchoring force to the inner surface side of a tunnel and a lining construction using it.;SOLUTION: This material allocated to the inner surface of the tunnel 1 and also made to one united body by filling a filler C between the inner surfaces of the tunnel 1, and a plurality of projected portions 31 are formed at the surface side facing the inner surface of the tunnel 1 and are intruded into the filling member C, thereby improving the anchoring force.;COPYRIGHT: (C)2001,JPO