| 摘要 |
<p>A draining and filtering net (1), particularly for geotechnical applications, comprising an intermediate layer (2) and a first outer layer (3) and a second outer layer (4) at the mutually opposite faces of the intermediate layer (2). The particularity of the invention consists in that the intermediate layer (2) and the outer layers (3, 4) are provided monolithically. The intermediate layer (2) is constituted by a plurality of substantially continuous filaments (10) which lie along the extrusion direction. At least one layer of nonwoven fabric (20) is further provided which is connected to one of the outer layers.</p> |
