| Issue |
Rev. Fr. Geotech.
Number 87, 1999
|
|
|---|---|---|
| Page(s) | 71 - 74 | |
| DOI | https://doi.org/10.1051/geotech/1999087071 | |
| Published online | 09 October 2017 | |
Sols argileux normalement consolidés reconstitués par gradient hydraulique
1 CNRS UMR 7649 Laboratoire de Mécanique des Solides 91128 Palaiseau Cedex, France.
2 CEA-CESTA Service Expérimentation, BP2, 33114 LE BARP, France.
L’expérimentation en centrifugeuse de la tenue de la fondation d’une pile de pont a nécessité la reconstitution d’un massif de sol argileux normalement consolidé présentant une cohésion croissante avec la profondeur. L’argile prélevée sur site a été rendue homogène, puis consolidée en conteneur par la méthode du gradient hydraulique. On contrôle soigneusement le débit d’infiltration et la pression interstitielle au cours de la consolidation.
Abstract
Centrifuge testing of pier foundation behaviour requires a normally consolidated clayey soil mass that presents undrained shear strength increasing with depth, The soil material sampled on site was initially homogenized and consolidated in a container using the hydraulic gradient method. The water flow coming out of the model and the pore water pressure recorded by several sensors have been carefully monitored during the consolidation process.
Mots clés : force de masse / gradient hydraulique / argile normalement consolidée
Key words: mass force / hydraulic gradient / normally consolidated clay
© CFMS-CFGI-CFMR-CFG 1999
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