[article]
| Titre : |
Thickness and hydraulic performance of geosynthetic clay liners overlying a geonet |
| Type de document : |
texte imprimé |
| Auteurs : |
S. Dickinson, Auteur ; R. W. I. Brachman, Auteur ; R. Kerry Rowe, Auteur |
| Année de publication : |
2010 |
| Article en page(s) : |
pp. 552-561 |
| Note générale : |
Géotechnique |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Geosynthetic clay liners Lining landfills |
| Index. décimale : |
624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels |
| Résumé : |
Experimental results from physical testing are reported to examine the thickness and hydraulic performance of three geosynthetic clay liners (GCLs) overlying a geonet when subjected to vertical stresses (e.g., as may be found in a secondary leachate collection layer or hydraulic control layer in solid waste landfills). The GCL was found to intrude into the underlying geonet and the effects of GCL type and water content, temperature, applied pressure, and test duration on the final GCL thickness are examined. The results are consistent with GCL deformation from the beneficial consolidation of bentonite as opposed to lateral extrusion of bentonite. Results from fixed ring flow tests suggest that the indentations in the GCL caused by intrusion into the underlying geonet do not appear to negatively impact the hydraulic performance (permittivity or resistance to internal erosion) of the particular GCLs tested for the conditions examined. The flow capacity of the geonet in these tests was found to depend not only on the amount of GCL intrusion but also on the orientation of the geonet relative to the flow direction.
|
| DEWEY : |
624.1 |
| ISSN : |
1090-0241 |
| En ligne : |
http://ascelibrary.org/gto/resource/1/jggefk/v136/i4/p552_s1?isAuthorized=no |
in Journal of geotechnical and geoenvironmental engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 552-561
[article] Thickness and hydraulic performance of geosynthetic clay liners overlying a geonet [texte imprimé] / S. Dickinson, Auteur ; R. W. I. Brachman, Auteur ; R. Kerry Rowe, Auteur . - 2010 . - pp. 552-561. Géotechnique Langues : Anglais ( eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 552-561
| Mots-clés : |
Geosynthetic clay liners Lining landfills |
| Index. décimale : |
624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels |
| Résumé : |
Experimental results from physical testing are reported to examine the thickness and hydraulic performance of three geosynthetic clay liners (GCLs) overlying a geonet when subjected to vertical stresses (e.g., as may be found in a secondary leachate collection layer or hydraulic control layer in solid waste landfills). The GCL was found to intrude into the underlying geonet and the effects of GCL type and water content, temperature, applied pressure, and test duration on the final GCL thickness are examined. The results are consistent with GCL deformation from the beneficial consolidation of bentonite as opposed to lateral extrusion of bentonite. Results from fixed ring flow tests suggest that the indentations in the GCL caused by intrusion into the underlying geonet do not appear to negatively impact the hydraulic performance (permittivity or resistance to internal erosion) of the particular GCLs tested for the conditions examined. The flow capacity of the geonet in these tests was found to depend not only on the amount of GCL intrusion but also on the orientation of the geonet relative to the flow direction.
|
| DEWEY : |
624.1 |
| ISSN : |
1090-0241 |
| En ligne : |
http://ascelibrary.org/gto/resource/1/jggefk/v136/i4/p552_s1?isAuthorized=no |
|
Thickness and hydraulic performance of geosynthetic clay liners overlying a geonet in Journal of geotechnical and geoenvironmental engineering, Vol. 136 N° 4 (Avril 2010)
