| 摘要 |
PURPOSE: An underground side ditch assembly is provided to prevent underground water from becoming exhausted by preventing a porous drainage area from getting clogged. CONSTITUTION: An underground side ditch assembly comprises an upper cover(110), a drain pipe(120), and rubble blocking units(130). The upper cover has rainwater inlets(112). The drain pipe comprises a pair of side walls(122), a bottom portion(124), and porous drainage areas(126). The side walls are extended downward from the upper cover. The bottom portion connects the bottom ends of the side walls. The porous drainage areas are formed on the side walls and drain rainwater. The rubble blocking units are arranged between the porous drainage areas and an underground rubble layer and prevent the porous drainage areas from getting clogged by rubble particles.
|
