Consolidation of an Anisotropic Compressible Poroelastic Clay Layer by Axisymmetric Surface Loads

Rani, Sunita; Kumar, Raman; Singh, Sarva Jit

doi:10.1061/(asce)gm.1943-5622.0000073

Cited by 17 publications

(4 citation statements)

References 12 publications

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“…Further, equations (5.9) and (5.10) contain only negative exponentials suitable for a half-space. For a clay layer, we should choose solutions for p and F containing both negative and positive exponentials (Rani et al, 2011).…”

Section: Consolidation Of a Poroelasticmentioning

confidence: 99%

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Consolidation of a Poroelastic Half-Space

Singh

Rani

Kumar³

2013

MJIS

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A porous medium is an elastic solid permeated by an interconnected network of pores filled with a fluid. Both solid and pore network are assumed to be continuous so as to form two interpenetrating continua. The theory of poroelasticity investigates the time-dependent coupling between the deformation of the elastic solid skeleton and fluid flow within the skeleton. The solid-to-fluid and fluid-to-solid couplings are assumed to occur instantaneously in the quasi-static approximation in which elastic wave propagation is ignored. Consolidation of a poroelastic body takes place when it is acted upon by surface loads. The study of consolidation of a poroelastic half-space or stratum has received much attention due to its geophysical and engineering applications. The aim of the present paper is to review recent work on the subject, indicating the assumptions made, methods used and conclusions drawn.

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Section: Consolidation Of a Poroelasticmentioning

confidence: 99%

“…A solution for plane strain consolidation of a soil layer with anisotropic permeability and incompressible fluid and solid constituents due to surface loads was obtained by Ai and Wu (2009). Rani et al (2011) obtained the corresponding axisymmetric solution when the fluid and solid constituents are compressible.…”

Section: Introductionmentioning

confidence: 99%

Consolidation of a Poroelastic Half-Space

Singh

Rani

Kumar³

2013

MJIS

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“…Considering Boyle's Law and Henry's Law, Fredlund (1976) formulated the compressibility and density equations for gas-water mixtures (GWM), and then, Pietruszczak and Pande (1996) modified the representation of the compressibility of GWM by considering the effect of surface tension. After that, consolidation problems of soils with compressible fluid and solid constituents were extensively studied (Rajapakse and Senjuntichai 1993;Yue et al 1994;Lade and DE Boer 1997;Chen 2004;Rani et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Modelling the thermal–hydro-mechanical behaviour of unsaturated soils with a high degree of saturation using an extended precise integration method

et al. 2023

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Unsaturated soils with a high degree of saturation (HDS) are commonly encountered in marine and lacustrine sediments. In these soils, the gas phase generally exists in the state of discrete bubbles, which is sensitive to stress and temperature changes and can dramatically change the soil’s engineering properties. This paper explores the thermal-induced behaviour of HDS soils using an efficient extended precise integration method (XPIM). Biot poroelasticity theory, extended to include thermal effects and compressibility of gas-water mixture, is employed to analyze the soil behaviour under non-isothermal condition. Based on Laplace-Fourier transform and Taylor series expansion, such problems can be solved by XPIM. The robustness of XPIM was confirmed by comparing the present results with analytical solutions and test data. Extensive parametric studies are undertaken to examine both the effects of soil grain thermal expansion and anisotropic permeability on soil behaviour, and temperature effects on degree of saturation (Sr). The thermal-induced variations in Sr are more pronounced with lower initial values (e.g. 90% compared to 99%). These quantitative results demonstrate the benefits of the proposed method, which proves to be extremely efficient and several orders more precise than conventional numerical approaches, with its precision limited only by the computational effort used.

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“…(Asaoka, 1978) propone un nuevo método para la predicción de asentamiento través de la observación, basado en el registro de lecturas de tiempo y magnitud de asentamientos medidos en campo en un tiempo determinado hasta que las magnitudes sean mínimas de las anteriores (Tavenas, et al, 1979) considera que la variabilidad del coeficiente de consolidación vertical (Cv ) se debe a las propiedades químicas del suelo, como son los minerales. (Zhu & Yin, 2001, Rani, et al, 2011 plantean métodos y tasas de asentamiento (tasa de deformación) para evaluar los resultados de las pruebas de consolidación. (Yin & Graham, 1994, Zhu & Yin, 1999, Kim & Mission, 2011 el tiempo y los efectos de la tasa de deformación sobre el comportamiento de las arcillas en capas con permeabilidad anisotrópicas utilizando métodos numéricos de elementos finitos y modelado constitutivo de viscoplástico elástico.…”

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Teoría De Consolidación, Una Revisión De La Literatura

Pérez

Monja

Chumacero

2020

ICTI

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El objetivo de esta presente investigación, es una revisión literaria de 60 referencias bibliográficas de las cuales 46 son artículo de revistas indexadas en la base de datos Scopus y Scielo, 13 libros y 01 tesis que sustentan la evolución de la teoría de la consolidación unidimensional propuesta por Terzaghi en 1925 para predecir los asentamientos producto de la disminución de los vacíos debido a la expulsión parcial y total del agua, A través del tiempo está teoría tomó mayor soporte teórico y es usada en muchos proyectos geotécnicos y civiles para el cálculo de asentamientos a través de programas de elementos finitos como PLAXIS y FLAC 3D. Se concluye que se ha logrado grandes avances de modelar el comportamiento hidromecánico de suelo en programas de elementos finitos para poder explicar la heterogeneidad del suelo y explicar la interacción que debe de tener con la superestructura.

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Consolidation of an Anisotropic Compressible Poroelastic Clay Layer by Axisymmetric Surface Loads

Cited by 17 publications

References 12 publications

Consolidation of a Poroelastic Half-Space

Consolidation of a Poroelastic Half-Space

Modelling the thermal–hydro-mechanical behaviour of unsaturated soils with a high degree of saturation using an extended precise integration method

Teoría De Consolidación, Una Revisión De La Literatura

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