| 摘要 |
PURPOSE: A mortar injection method in a tunnel is provided to minimize the generation of an air gap in the injection of mortar. CONSTITUTION: A mortar injection method in a tunnel comprises following steps. Concrete(390) is injected into an empty space among a form(340), a steel girder(300), and a cross beam(310) through a concrete injection pipe(350) using an injector(380) and a concrete mixture(370). Concrete injection is stopped when concrete flows out through a concrete check pipe(360). Mortar is injected into an empty space on a lower part of a flat board(320) and an upper part of the concrete from an upper part of the cross beam through a main mortar injection pipe(400) and a mortar injection pipe(410).
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