| 摘要 |
<p>The rainwater drainage for earth roads is made of polymeric recycled material, reinforced with steel rods (3) to improve resistance against damage caused by mechanical load; it has a form of a profile with a formed groove (2) on its functional side (4). The functional side (4) with the side edge (5) makes an angle greater than 90ø. The groove (2) for water draining is U-shaped or it has a rectangle cross-section with round edges (6).</p> |
