Reinforcing structure and reinforcing method for rectangular section underground structure

摘要

PPROBLEM TO BE SOLVED: To provide the reinforcement structure for a rectangular sectional underground structure and its reinforcement method, in which large-scale construction works are not required for reinforcing the existing rectangular sectional underground structure. PSOLUTION: The reinforcement structure for the rectangular sectional underground structure is composed of slits 20, which are formed to wall surfaces 13 and 14 connecting the upper floor slab 11 and lower floor slab 12 of the existing rectangular sectional underground structure 10, tabular steel materials 30 inserted into the slits 20 and reinforcing fillers 40 injected among the slits 20 and the steel materials 30. The steel materials 30 and the underground structure 10 are unified by the reinforcing fillers 40. PCOPYRIGHT: (C)2004,JPO&NCIPI