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Geotextile Filter Design Critique
Book chapter

Geotextile Filter Design Critique

R F Wilson-Fahmy, G R Koerner and R M Koerner
Recent Developments in Geotextile Filters and Prefabricated Drainage Geocomposites
01 Jan 1996
DOI: https://doi.org/10.1520/STP15598S
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Clogging Design Methods Filter Design Filtration Geotextile Permeability Soil Retention
The current status of design of geotextile filters in highway drainage applications is challenged in this paper by virtue of having the actual performance behavior of 91 exhumed field sites. The drainage systems investigated involved mainly highway edge drains in addition to some selected cases of retaining wall drains and erosion control systems. Considering the field data as “ground truth” information, they are compared with the existing permeability, soil retention and excessive-clogging criteria that have been proposed in the literature for design purposes. The current Federal Highway Administration (FHwA) guidelines are shown to be very suitable and perform well against the results of the field exhumed sites. It is suggested, however, that the gradient ratio test recommended by FHwA be replaced by the long term flow test or the hydraulic conductivity ratio test in evaluating the possibility of excessive clogging.

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13 Record Views
6 citations in Web of Science
7 citations in Scopus

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UN Sustainable Development Goals (SDGs)

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#13 Climate Action

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Web of Science research areas
Engineering, Civil
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