Model for the Deformation of Sand During Rotation of Principal Stress Directions

Gutierrez, Marte; Ishihara, Kenji; Towhata, Ikuo

doi:10.3208/sandf1972.33.3_105

Cited by 82 publications

(75 citation statements)

References 7 publications

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“…Consequently, it can simulate the behavior of given sand at any density and confining stress by using the same set of material parameters. Key assumptions in the elastic-plastic formulation are: (i) continuous yielding or vanishing elastic region; (ii) dependence of plastic strain increment direction on the stress increment direction; and (iii) flow formulation allowing for effects due to rotation of principal stresses [11]. The model was specifically tailored for liquefaction problems 8/47…”

Section: Methods Of Analysismentioning

confidence: 99%

Prediction of pile response to lateral spreading by 3-D soil–water coupled dynamic analysis: Shaking in the direction of ground flow

Cubrinovski

Uzuoka²,

Sugita³

et al. 2008

Soil Dynamics and Earthquake Engineering

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Numerical predictions of a series of shake table tests are presented in this paper in order to examine the accuracy of a 3-D effective stress analysis in predicting the behavior of piles subjected to liquefaction-induced ground flow. For a rigorous assessment of the analysis, "Class B" predictions are reported in which numerical and constitutive model parameters were set before the event, and the target motion was used as an input motion in the analysis. Modeling of the stress-strain behavior of sand, identification of the initial stress state and critical numerical parameters in the 3-D seismic analysis of the soil-pile system are discussed in detail. Combined effects of kinematic loads due to large lateral ground movement and inertial loads on pile behavior are examined through a series of tests using different shaking direction, excitation amplitude and mass of the footing (load from the superstructure). By and large, very good agreement was obtained between the predicted and measured peak responses of the pile foundation, whereas the analysis underestimated the displacements of the sheet-pile wall and was less accurate in predicting the residual deformation of the foundation piles. Reasons for these discrepancies and limitations of the analysis method are discussed.

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Section: Methods Of Analysismentioning

confidence: 99%

Prediction of pile response to lateral spreading by 3-D soil–water coupled dynamic analysis: Shaking in the direction of ground flow

Cubrinovski

Uzuoka²,

Sugita³

et al. 2008

Soil Dynamics and Earthquake Engineering

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“…A multi-directional sliding model to capture deformation during the rotation of principal stress axes has been proposed by Miura et al (1986), Matsuoka and Sakakibara (1987), Matsuoka et al (1990) and Gutierrez et al (1993). Nishimura and Towhata (2004) developed a three dimensional multi-directional sliding model, which gave a good prediction of drained shear and cumulative volumetric strain after loading cycles.…”

Section: Kinematic Hardening Models To Model Induced Anisotropy and Tmentioning

confidence: 99%

“…Setouchi et al (2006) emphasized the importance of the strain increment induced by the stress rate component tangential to the yield surface, which is generated when the principal stress direction rotates. Gutierrez et al (1993) added a non-coaxial term c to the stress-dilatancy expression given in Eq. (2).…”

Section: Stress-dilatancy-the Fundamental Of Soil Modelingmentioning

confidence: 99%

Modeling of Geomaterials Behavior

Soga

O’Sullivan

2010

Soils and Foundations

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The review of 50 years of papers published in Soils and Foundations demonstrates that signiˆcant eŠort has been made by many researchers to develop soil models. The contributions of Soils and Foundations in the area of soil modeling are subdivided into two topics: (a)``macro''-mechanics and (b)``micro''-mechanics. The attention to macro-mechanics is focused on continuum-based models, whereas that to micro-mechanics is focused on discrete based models. Soils are examples of complex systems, made up of basic units that interact to generate an emergent response that is more complex than the response of the units themselves. Despite the challenges posed by the complexity of the systems, our understanding of the link between the particles, their interactions and the overall``macro-scale'' soil response has signiˆcantly been improved over the life of Soils and Foundations. In this review of contributions to soil modeling, many examples of macro-scale soil models developed with a real consideration of the mechanical response of the individual particles were found.

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“…Joint interface elements are arranged between soil and concrete to allow shear slip, where the coefficient of friction is assumed to be 0.4. The constitutive model for soil used in this study was originally deveoped by Ishihara (1985a, 1985b) and Gutierrez et al (1993), and installed into the integrated analysis .…”

Section: Vertical Earth Pressure To Rc Culvert Backfilled With Soilmentioning

confidence: 99%

Mechanism of Long-Term Excessive Deformation and Delayed Shear Failure of Underground RC Box Culverts

Maekawa

Zhu

Chijiwa

et al. 2016

ACT

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The aim of this study is to clarify the mechanism of the progressive excessive deformation observed in real underground RC box culverts of about 30 years of age. It was found by the site-inspection, monitoring and the destructive testing that the excessive deflection of top slabs for the culverts, which is almost 10 times the design estimated value, accompanies the out-of-plane shear failure. It is also computationally investigated that the coupling of subsidence of the backfill soil and the combined creep and shrinkage of concrete after cracking is closely associated with the delayed shear failure found in the culvert in service. In order to prove the delayed shear failure under higher sustained loads, the timedependent shear crack propagation was reproduced in the laboratory test and the computational approach used in this study was examined.

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Model for the Deformation of Sand During Rotation of Principal Stress Directions

Cited by 82 publications

References 7 publications

Prediction of pile response to lateral spreading by 3-D soil–water coupled dynamic analysis: Shaking in the direction of ground flow

Prediction of pile response to lateral spreading by 3-D soil–water coupled dynamic analysis: Shaking in the direction of ground flow

Modeling of Geomaterials Behavior

Mechanism of Long-Term Excessive Deformation and Delayed Shear Failure of Underground RC Box Culverts

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