Repair and reinforcement method of existing tunnel

摘要

PROBLEM TO BE SOLVED: To provide a repair and reinforcement method for an existing tunnel, which makes workability proper, which makes it unnecessary to individually manufacture a form depending on a curved surface of lining concrete to be repaired and reinforced, and which uses a general-purpose form.SOLUTION: A plurality of flat plate strip-shaped form plate materials are connected and integrated together to construct a framework wall form having a polygonal line-like cross-sectional shape, and the framework wall form is formed like a pseudo curved surface imitating a curved surface of existing lining concrete.SELECTED DRAWING: Figure 2