Disturbed State Model for Porous Saturated Materials

Desai, C. S.; Wang, Zhichao

doi:10.1061/(asce)1532-3641(2003)3:2(260)

Cited by 31 publications

(1 citation statement)

References 9 publications

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“…Rojas [50] has conducted a similar analysis of the concept of effective stress in unsaturated soil. He relies on previous results by Haines [51], Murray [52] and Desai et al [53].…”

Section: Stress States In Unsaturated Soilsmentioning

confidence: 94%

Behavior of materials for earth and rockfill dams: Perspective from unsaturated soil mechanics

Alonso

Cardoso²

2010

Front. Archit. Civ. Eng. China

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The basis of the design of earth and rockfill dams is focused on ensuring the stability of the structure under a set of conditions expected to occur during its life. Combined mechanical and hydraulic conditions must be considered since pore pressures develop during construction, after impoundment and in drawdown. Other instability phenomena caused by transient flow and internal erosion must be considered. The prediction of the hydromechanical behavior of traditional and non-traditional materials used in the construction of dams is therefore fundamental. The materials used for dam's construction cover a wide range from clayey materials to rockfill. In a broad sense they are compacted materials and therefore unsaturated materials. A summary of the current level of knowledge on the behavior of traditional materials used in the construction of dams is presented in the paper. Regular compacted materials (with a significant clay fraction), rockfill and compacted soft rocks are studied with more detail. The latter are non-traditional materials. They are analysed because their use, as well as the use of mixtures of soil and rock, is becoming more necessary for sustainability reasons.

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“…Rojas [50] has conducted a similar analysis of the concept of effective stress in unsaturated soil. He relies on previous results by Haines [51], Murray [52] and Desai et al [53].…”

Section: Stress States In Unsaturated Soilsmentioning

confidence: 94%

Behavior of materials for earth and rockfill dams: Perspective from unsaturated soil mechanics

Alonso

Cardoso²

2010

Front. Archit. Civ. Eng. China

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Disturbed State Concept (DSC) for Constitutive Modeling of Geologic Materials and Beyond

Desai

2013

Springer Series in Geomechanics and Geoengineering

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Disturbed state concept and non-isothermal shear strength model for unsaturated soils

Pham

Sütman

2022

Bull Eng Geol Environ

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Shear strength of unsaturated soils is an important engineering property that is required for addressing geotechnical problems, the prediction of which remains to be a challenging task for design engineers due to the complex interaction problem. This study presents a new shear strength equation based on the micromechanical model and the disturbed state concept for unsaturated soils. The original point of this study is considering the solid contact area ratio which was neglected in most of the existing equations. Using the proposed model, the non-linear relationship between the matric suction, saturation degree, and the shear strength of unsaturated soils are described. Validation of the shear strength model was verified against the experimental data and several current models on six different types of soils. The results indicate that the proposed model has a good performance in predicting the shear strength of unsaturated soils, and generally is better than other existing models. In response to varying climatic conditions, the analytical model was then extended to consider the effect of temperature on the shear strength of unsaturated soils. The comparison between predicted and measured results was carried out on compacted silt for three different temperatures. The results show that the proposed model is capable of accurately predicting changes in unsaturated shear strength as a function of temperature.

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Disturbed State Model for Porous Saturated Materials

Cited by 31 publications

References 9 publications

Behavior of materials for earth and rockfill dams: Perspective from unsaturated soil mechanics

Behavior of materials for earth and rockfill dams: Perspective from unsaturated soil mechanics

Disturbed State Concept (DSC) for Constitutive Modeling of Geologic Materials and Beyond

Disturbed state concept and non-isothermal shear strength model for unsaturated soils

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