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

Discussion: Rollin Andre L. (See full record)
Discussion: Wiltshire Richard L. (See full record)
Closure: (See full record)


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

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