TUNNEL LINING REINFORCEMENT STRUCTURE, TUNNEL LINING REINFORCEMENT MEMBER, AND TUNNEL LINING REINFORCEMENT METHOD

摘要

PROBLEM TO BE SOLVED: To perform reinforcement with excellent construction efficiency in a tunnel lining composed of core mold segments.;SOLUTION: A tunnel lining reinforcement structure 1 for reinforcing a tunnel lining 14 composed of core mold segments comprises: an inter-ring bolt 2 for penetrating respective main girder parts 16 of adjacent core mold segments 10; a reinforcement plate 20 stuck on tunnel inner-side surfaces of the respective main girder parts 16; and a reinforcement plate fixture 30 for fixing the reinforcement plate 20. The reinforcement plate fixture 30 has a U-shaped cross section for surrounding the respective main girder parts 16 and the reinforcement plate 20; both ends of the reinforcement plate fixture 30 are fixed on the core mold segments 10 using the inter-ring bolt 2 and a nut 3.;SELECTED DRAWING: Figure 5;COPYRIGHT: (C)2018,JPO&INPIT