Filter Criteria for Geotextiles: Relevance and Use

by Chris R. Lawson, Principal; Lawson Consulting, Sydney, Australia,

Serial Information: Journal of the Geotechnical Engineering Division, 1982, Vol. 108, Issue 10, Pg. 1300-1317

Document Type: Journal Paper


Thm general requirements for filters, both granular and geotextile, in one-directional flow applications and the relevant geotextile properties affecting good filtration performance are presented. The relevance of existing one-directional geotextile filter criteria is also examined. An application involving the specification and performance evaluation of a geotextile for an internal filter in an earth dam, constructed on flyash, where large hydraulic heads were anticipated at the flyash-geotextile interface (up to 10.8 m) validated the use of existing geotextile filter criteria.

Subject Headings: Filters | Geosynthetics | Fly ash | Trihalomethanes | Granular materials | Freight transportation | Earthfill dams | Recycling

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