Undrained Monotonic and Cyclic Strength of Sands

Alarcon-Guzman, Adolfo; Leonards, G. A.; Chameau, Jean‐Lou

doi:10.1061/(asce)0733-9410(1988)114:10(1089)

Cited by 238 publications

(78 citation statements)

References 23 publications

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“…3 Triaxial test results (confining pressure 30MPa) at constant amplitude on sandstone specimens (20-320 kN, f = 1 Hz), failure after 629 cycles, from Liu and He (2012) of rock sample strengths, producing very different results. Interestingly, such relation is also observed for cyclically loaded sands (Alarcon-Guzman et al 1989) or creep as reported later (Brantut et al 2014).…”

Section: Stress-strain Curvessupporting

confidence: 74%

Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

Cerfontaine¹,

Collin²

2017

Rock Mech Rock Eng

293

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Section: Stress-strain Curvessupporting

confidence: 74%

Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

Cerfontaine¹,

Collin²

2017

Rock Mech Rock Eng

293

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“…Similar to that of the very loose sample, the initial peak for the medium loose samples (except the sample with n = 0.405 under UPS) is followed by a gradual decrease with further straining until a "steady" state is obtained. Such a "steady" state is, however, only temporary for the medium loose samples, called quasi-steady state [16], and with further straining the deviatoric stress goes up again. Such behaviour of the medium loose samples is also called temporary or partial liquefaction in soil mechanics.…”

Section: Resultsmentioning

confidence: 99%

DEM Simulations of Granular Soils under Undrained Triaxial Compression and Plane Strain

Gong¹

2015

JAMP

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The paper presents 3D DEM simulation results of undrained tests for loose assemblies with varied porosities under both triaxial compression and plane strain conditions, using a periodic cell. The undrained tests were modelled by deforming the samples under constant volume conditions, which corresponds to saturated soil samples. The undrained stress paths are shown to be qualitatively similar to physical experimental results. The triggering of liquefaction and temporary liquefaction is identified by a microscopic parameter with redundancy factor (RF) equal to unity, which defines the transition from "solid-like" to "liquid-like" behaviour. The undrained behaviour of granular soils is found to be mainly governed by the evolution of redundancy factor, and a reversal of deviatoric stress in stress path (temporary liquefaction) is found to be due to temporary loss of contacts forming a structural mechanism in the system where RF is smaller than unity during the evolution.

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“…Plusieurs travaux de recherche trouvés dans la litté rature montrent que la résistance à la liquéfaction des sols sous chargements cycliques augmente avec l'aug mentation de la densité (Seed et Idriss, 1971 ;Seed, 1979 ;Castro et Poulos, 1977 ;Vaid et al, 1985 ;Kramer et Seed, 1988 ;Alarcon-Guzman et al, 1988), de la fraction des particules fines (Ishihara, 1985 ;Kuerbis et al, 1988 ;Erten et Maher, 1995 ;Singh, 1994Singh, et 1996, de l'indice de plasticité (Bray et Sancio, 2006), de la pression de consolidation (Casagrande, 1976 ;Tokimatsu et Hosaka, 1986 ;Yasuda et al, 1997), de l'effet du Cyclic liquefaction test on soil at 2.2 m under a cyclic deviator stress of 11.7 kPa.…”

Section: Comportement De Liquéfactionunclassified

Comportement mécanique des sols lœssiques naturels sous sollicitations cycliques

et al. 2011

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Résumé Mechanical behaviour of natural loessic soils under cyclic loading AbstractWithin the action plan launched in 2002 by the French company for railway management (RFF) and the railway company (SNCF), and following on the instability problem observed on the northern high speed line, a laboratory study was undertaken aiming at identifying the mechanisms of instability related to the behaviour of the soil involved: loess. Intact samples were taken in block at various depths and different tests were carried out: geotechnical classification tests, collapse test in oedometer, fatigue tests at low and high frequencies, and liquefaction tests. The results showed a moderate collapse starting from the natural state (< 3.7 %). On the other hand, a high sensitivity to the water content was observed since a linear increase of collapse with the reduction of the water content was identified. The results of the fatigue tests at low frequency showed that on the whole the strains increase with the increase in amplitude of the deviator stress. The effect of frequency was found to be negligible. The liquefiable character of the soils was shown by both undrained monotonous shear tests and cyclic shear tests. Moreover, the results showed that it is possible to define a criterion of liquefaction either in terms of over pore pressure build-up or in term of axial strain. The liquefaction resistance of the soils seems strongly dependent on the density and the fraction of fines.

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Undrained Monotonic and Cyclic Strength of Sands

Cited by 238 publications

References 23 publications

Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

DEM Simulations of Granular Soils under Undrained Triaxial Compression and Plane Strain

Comportement mécanique des sols lœssiques naturels sous sollicitations cycliques

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