EXCAVATION HOLE SUPPORT STRUCTURE, EXCAVATION HOLE SUPPORT MATERIAL AND EXCAVATION HOLE SUPPORT METHOD

摘要

PROBLEM TO BE SOLVED: To provide an excavation hole support structure, an excavation hole support material and an excavation hole support method, capable of stably supporting an inner surface of an excavation hole with a simple structure.;SOLUTION: A tunnel support structure 30 has a plurality of flexible tubes 10 arranged at an interval in the tunnel longitudinal direction, a tubular body 11 arranged in the tunnel longitudinal direction in a tunnel and respectively communicating with the plurality of tubes 10, and a fluid solidifying material filled in the plurality of tubes 10 and the tubular body 11. The plurality of tubes 10 are arranged in a ring shape in the tunnel peripheral direction, and are brought into close contact with a tunnel inner surface.;COPYRIGHT: (C)2006,JPO&NCIPI