PC Rainwater recycling facility having segment built-up-type PC block and landscape tree rainwater recycling facility system of the same

摘要

The present invention provides a rainwater storage tank having a segment assembly type PC block and a rainwater storage system for a landscape tree using the same. The rainwater storage tank is simply installed a simple method by assembly a pair of PC blocks and can reduce and prevent damage due to flooding by causing natural penetration on the ground after temporarily collecting and storing rainwater on the circumference of a landscape tree planted. The rainwater storage tank can prevent damage due to flood caused by strong rainfall. According to a proper embodiment of the present invention, the rainwater storage tank having the segment assembly type PC block comprises: a pair of rainwater storage tank blocks manufactured in a same size and a same structure as that of precast concrete; a block connection protrusion and a block connection protrusion groove determining a mutual connection position on a connection surface of the pair of rainwater storage tank block; and a block connection unit for mutually connecting the rainwater storage tank blocks. The pair of rainwater storage tank blocks comprises: a bottom plate having one or more penetration holes; a core wall standing erect and having a fixed radius at the edge in which there is the connection surface on the bottom plate; right and left connection walls extended from the core wall and standing erect on the bottom plate; right and left side walls facing each other and standing erect on the bottom plate by being connected to the connection wall at right angles; a rear wall standing erect on the bottom plate by being connected to the right and left side walls at the right angles; and a rainwater storage chamber enclosed by the core wall, the right and left connection walls, the right and left side walls, and the rear walls and opened to the upper part of the bottom plate.