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Field evaluation of geonet flow rate (transmissivity) under increasing load
Journal article   Peer reviewed

Field evaluation of geonet flow rate (transmissivity) under increasing load

A.W. Eith and R.M. Koerner
Geotextiles and geomembranes, v 11(4), pp 489-501
1992
DOI: https://doi.org/10.1016/0266-1144(92)90027-8
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

This paper presents data from a full scale field test of a geonet placed between two geomembranes used as a leak detection system for a solid waste landfill. The cell under investigation is 1·54 ha in area, with the geonet covering 0·87 ha of the base of the cell. The remaining sideslope area was also covered by geonet, but did not contribute to the flow rate testing. Approximately 2300 liters of water were injected at three different times; i.e., at landfill waste heights corresponding to 12, 153 and 311 kPa normal stresses. The percentages of recovered water within a 15-h period were 93·9%, 89·6% and 81·2% respectively. The calculated transmissivity values reflected the increased normal stress as would have been anticipated, i.e., transmissivity values decreased from 45·2 to 43·5 to 40·0 × 10 −4 m 2/s , respectively. These decreases were anticipated due to the elastic intrusion of the geomembranes into the geonet under the gradually increasing normal stresses. The results indicate that geonets are viable drainage materials under actual full-scale field conditions and should certainly be considered as drainage replacements for natural granular soil drainage media.

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7 citations in Web of Science
12 citations in Scopus

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UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#12 Responsible Consumption & Production
#13 Climate Action
#7 Affordable and Clean Energy
#11 Sustainable Cities and Communities

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Web of Science research areas
Engineering, Geological
Geosciences, Multidisciplinary
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