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Title:
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Yielding of rockfill in relative humidity-controlled triaxial experiments
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Author:
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Alonso Pérez de Agreda, Eduardo; Romero Morales, Enrique Edgar; Ortega, Enrique
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques |
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Abstract:
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The final publication is available at Springer via http://dx.doi.org/10.1007/s11440-016-0437-9 |
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Abstract:
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The paper reports the results of suction controlled triaxial tests performed on compacted samples of two well graded granular materials in the range of coarse sand-medium gravel particle sizes: a quartzitic slate and a hard limestone. The evolution of grain size distributions is discussed. Dilatancy rules were investigated. Dilatancy could be described in terms of stress ratio, plastic work input and average confining stress. The shape of the yield locus in a triaxial plane was established by different experimental techniques. Yielding loci in both types of lithology is well represented by approximate elliptic shapes whose major axis follows approximately the Ko line. Relative humidity was found to affect in a significant way the evolution of grain size distribution, the deviatoric stress-strain response and the dilatancy rules. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de roques
-Gravel--Testing
-Dilatancy
-Gravel
-Plasticity
-Relative humidity
-Rockfill
-Triaxial tests
-Yield surfaces
-Grava |
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Rights:
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Document type:
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Article - Submitted version
Article |
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