| 摘要 |
PURPOSE: An arched passage construction method using a precast member is provided to have excellent internal force against earth pressure, to construct simply, to reduce the term of works and to improve the quality of construction. CONSTITUTION: The arched passage construction method using a precast member, containing a precast wall(1) provided with an L-shaped support projection(3) and a ground part(5), and ceiling plates(2)(2a) whose both ends correspond to the support projection(3), comprises the steps of: placing ready-mixed concrete(c) on the bottom for arched passage construction, then surfacing and curing the surface of the concrete; reserving an exact location on both ends of footing concrete and erecting the precast wall(1) to make the support projections(3) for hanging the ceiling plate(2) face each other; placing the precast ceiling plate(2) over the support projections(3) of the wall(1); placing bottom concrete(f) between the ground parts(5) of the wall(1), then filling up with soils.
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