Performance of lime-treated silty soil under long-term hydraulic conditions
| Autor: | B. Le Runigo, Dimitri Deneele, Olivier Cuisinier, Valéry Ferber, Yu-Jun Cui |
|---|---|
| Přispěvatelé: | RMS, Laboratoire Central des Ponts et Chaussées (LCPC), R&D, Charier, Géotechnique (cermes), Laboratoire Navier (navier umr 8205), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Environnement Géomécanique et Ouvrages (LAEGO), Institut National Polytechnique de Lorraine (INPL) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
water circulation
Water circulation 0211 other engineering and technologies Compaction 02 engineering and technology Silt engineering.material complex mixtures Jossigny silt lime treatment [PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] 021105 building & construction Mechanical strength [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] Geotechnical engineering permeability 021101 geological & geomatics engineering Lime Geology mechanical strength Geotechnical Engineering and Engineering Geology Durability 6. Clean water Permeability (earth sciences) Soil water engineering Environmental science durability |
| Zdroj: | Engineering Geology Engineering Geology, Elsevier, 2011, 118 (1-2), pp.20-28. ⟨10.1016/j.enggeo.2010.12.002⟩ |
| ISSN: | 0013-7952 1872-6917 |
| DOI: | 10.1016/j.enggeo.2010.12.002⟩ |
| Popis: | International audience; The durability of the mechanical improvements brought by lime once the involved earth structures are exposed to long-term hydraulic conditions (long-term water contact and water circulation) is still under discussion. This paper aims at assessing i) the impact of such hydraulic conditions on the mechanical shear strength of a lime-treated silty soil, and ii) the effect of initial conditions (lime content and compaction conditions) on the lime treatment durability. The results showed that water contact leads to a significant decrease in shear strength. The results also indicated that the mechanical performance of soils exposed to water circulation is highly related to the quantity of water passing through the soil specimens and hence to the permeability of the soils: the lower the permeability, the better the durability. Futhermore, it has been observed that a lime content higher than the lime modification optimum (LMO) enables a better homogeneity of the treatment, giving rise to a longer resistance to water circulation. |
| Databáze: | OpenAIRE |
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