LAMINATE AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a laminate which is a member suitable for constituting a part that is provided in a portion of a tunnel wall such as a segment wall body and can be excavated and which enables completion of excavation by a shield machine in a short time and moreover lessens a burden on the shield machine. SOLUTION: A plurality of sheet-like composite materials 1a prepared by reinforcing a plastic foam with inorganic fibers are laminated in a state of being curved at a prescribed curvature, while an adhesive layer 1b (or FRP layer) is interlaid between the materials 1a so as to adhere them to each other.