OcrV1, Main, Exploration, bibRecord, 001B92

Overconsolidation effects on secondary compression rates

Identifieur interne : 001B92 ( Main/Exploration ); précédent : 001B91; suivant : 001B93

Overconsolidation effects on secondary compression rates

Auteurs : E. Alonso [Espagne] ; A. Lloret [Espagne] ; A. Gens [Espagne] ; M. Salvado [Espagne]

Source :

RBID : Pascal:02-0102364

Descripteurs français

Pascal (Inist)
- Etude laboratoire, Compression oedométrique, Argile, Matériau surconsolidé, Déformation sous contrainte, Compression secondaire.

English descriptors

KwdEn :
- clay, consolidometer tests, laboratory studies, overconsolidated materials, strain.

Abstract

The secondary compression behaviour of a reconstituted low plasticity clay has been investigated. Oedometer tests performed included loading, unloading and reloading sequences. In this way the effect of OCR, loading increment ratio and the intensity of the final reloading or creeping stress was determined. It was found that, once the soil is overconsolidated (OCR ≥ 1.5), the secondary compression deformations depend on the loading increment ratio and the current creeping stress. A working model for secondary compression strains, which incorporates the experimental findings, was developed. Secondary deformations are proportional to the primary deformations associated with the loading increment ratio and to a function of time, which is controlled by the intensity of the reloading stress. Model predictions and actual measurements are in good agreement for a significant number of tests characterised by widely different stress sequences

Affiliations:

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000687
to stream PascalFrancis, to step Curation: 000105
to stream PascalFrancis, to step Checkpoint: 000660
to stream Main, to step Merge: 001C87
to stream Main, to step Curation: 001B92

Le document en format XML

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<author><name sortKey="Gens, A" sort="Gens, A" uniqKey="Gens A" first="A." last="Gens">A. Gens</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Technical University of Catalunya</s1>
<s2>Barcelona</s2>
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<author><name sortKey="Salvado, M" sort="Salvado, M" uniqKey="Salvado M" first="M." last="Salvado">M. Salvado</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Technical University of Catalunya</s1>
<s2>Barcelona</s2>
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<publicationStmt><idno type="wicri:source">INIST</idno>
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<date when="2001">2001</date>
<idno type="stanalyst">PASCAL 02-0102364 BRGM</idno>
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<author><name sortKey="Lloret, A" sort="Lloret, A" uniqKey="Lloret A" first="A." last="Lloret">A. Lloret</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Technical University of Catalunya</s1>
<s2>Barcelona</s2>
<s3>ESP</s3>
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<author><name sortKey="Gens, A" sort="Gens, A" uniqKey="Gens A" first="A." last="Gens">A. Gens</name>
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<s2>Barcelona</s2>
<s3>ESP</s3>
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<placeName><settlement type="city">Barcelone</settlement>
<region nuts="2" type="region">Catalogne</region>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>clay</term>
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<term>overconsolidated materials</term>
<term>strain</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etude laboratoire</term>
<term>Compression oedométrique</term>
<term>Argile</term>
<term>Matériau surconsolidé</term>
<term>Déformation sous contrainte</term>
<term>Compression secondaire</term>
</keywords>
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</teiHeader>
<front><div type="abstract" xml:lang="en">The secondary compression behaviour of a reconstituted low plasticity clay has been investigated. Oedometer tests performed included loading, unloading and reloading sequences. In this way the effect of OCR, loading increment ratio and the intensity of the final reloading or creeping stress was determined. It was found that, once the soil is overconsolidated (OCR ≥ 1.5), the secondary compression deformations depend on the loading increment ratio and the current creeping stress. A working model for secondary compression strains, which incorporates the experimental findings, was developed. Secondary deformations are proportional to the primary deformations associated with the loading increment ratio and to a function of time, which is controlled by the intensity of the reloading stress. Model predictions and actual measurements are in good agreement for a significant number of tests characterised by widely different stress sequences</div>
</front>
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Overconsolidation effects on secondary compression rates

Overconsolidation effects on secondary compression rates

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri