Hydraulic and earth engineering – Earth treatment or control
Patent
1996-04-03
1998-04-07
Graysay, Tamara L.
Hydraulic and earth engineering
Earth treatment or control
404 70, 442255, B32B 502, D03D 900, E01C 1116, E02D 1720
Patent
active
057356408
ABSTRACT:
Geosynthetics and structures for earth reinforcement, stabilization and retention. Membranes used in such structures are formed by weaving a number of fill members, which are preferably fibrillated polypropylene members or strips, with a plurality of warp member sets, which are preferably formed of extruded polypropylene yarns. The woven membrane so formed sustains the moderate tensile loads imposed by earth reinforcement requirements in roadways, runways, and other ways. It is inexpensive because the materials are inexpensive and may be woven in a cost efficient way, and, if desired, in a way which allows the strength and tensile properties of the membrane to be varied for a custom application by varying the composition, number and disposition of the fill members and warp members. These geosynthetic membranes provide superior results as compared to conventional extruded (and harder) conventional geogrids or other materials, because they are more flexible, easier to roll during manufacture, inventory, ship, and install. Such geosynthetics also feature a number of differently sized voids for effective soil and aggregate retention without filtration compromise. Finally, such geotextiles accommodate easier installation because successive sections may be more easily stitched, or otherwise fastened together.
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Mattel William M.
Meyer Bradley Ross
Ewing, IV James L.
Graysay Tamara L.
Mayo Tara L.
Nicolon Corporation
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