IMPROVED BIPLANAR NET STRUCTURE FOR FLUID DRAINAGE, PARTICULARLY FOR GEOTECHNICAL USE

摘要

The biplanar net structure has a first set of strands with spaces between them on one plane, which are rigidly associated with a second set of similar strands on a parallel second plane. The first set and second set of strands are inclined at a particular angle with respect to each other except where they cross and rigidly associate with each other where they are inclined at a lesser angle to each other.