| 摘要 |
The system for infiltration of rainwater into various ground layers makes use of a boring facility and a catchment pit. The catchment pit comprises a pit cover (1), a cone piece (2), pit rings (3), pipe with bend (4) and a recess (5). The pit cover makes possible the removal of residual material from the pit. The pipe (4) is the inlet to the bore rod. It extends out of the concrete floor (6) outwards, so that a sand catchment is created. The bend is formed on the pipe so that dirt cannot penetrate the inlet. The drill rod comprises a drill, filter sheet (7), water-penetrable filling (8) and the lowermost, perforated part of the pipe (9). |
