| 摘要 |
A prefabricated rainwater storage system and a construction method thereof are provided to promote the convenience of construction and to shorten a period of construction by assembling using blocks composed of a lower body, an upper body and a wall panel which are manufactured in a factory easily, to increase stiffness against horizontal load such as an earthquake, etc. by assembling blocks using fasteners, to prevent the deformation caused by creep and stiffness against compressive load by forming support walls on a lower body and an upper body and to construct selectively by installing a water permeable sheet or a water impervious sheet to the outside of a rainwater storage frame. A prefabricated rainwater storage system stores up rainwater by attaching a finishing member to the outside of a rainwater storage frame assembled with many blocks using fasteners and making the rainwater discharged from a building flow inward through an inflow pipe. Hereon the block comprises: a lower body(100) composed of a floor panel, a side wall having one or more primary fluid passage holes(121) to move rainwater easily and a support wall having one or more secondary fluid passage holes(131) to move rainwater easily; an upper body(200) placed on the upper part of the lower body and composed of a floor panel, a side wall having one or more primary fluid passage holes(221) to move rainwater easily and a support wall having one or more secondary fluid passage holes to move rainwater easily; and a wall panel(300) coupled to both sides of the side walls and the support walls and assembled with the lower body and the upper body to form two spaces split by each support wall. A construction method of the prefabricated rainwater storage system comprises the steps of performing excavation, constructing the foundation, constructing a rainwater storage frame by assembling blocks, connecting the rainwater storage frame to external facilities and constructing a water permeable sheet or a water impervious sheet to the side of the completed rainwater storage frame to drain or not to drain off the rainwater stored in the rainwater storage frame to the outside, and then compacting. |
