Biot analysis of consoidation beneath embankments

Smith, I. M.; Hobbs, R.

doi:10.1680/geot.1976.26.1.149

Cited by 36 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Near the pile, the material will be in a remoulded state (I) and in near-fracture and -failure conditions. Beyond the remoulded state and up to a certain distance ro from the centre-line, the material can be in a plastic flow state (11). After ro an elastic state may exist (Zone 111).…”

Section: General Proceduresmentioning

confidence: 99%

Effects of driving and subsequent consolidation on behaviour of driven piles

Desai

1978

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

SUMMARYThe effects and simulation of driving of structures (piles) into saturated soil media are discussed, and procedures for numerical simulation of driving are proposed. Consolidation caused by changes in stresses and in pore water pressures in the soil mass due to the driving is solved by using a finite element procedure. The changes in stresses and pore water pressures due to driving are obtained on the basis of the cavity expansion approach, and are introduced in the finite element procedure as initial conditions. Stresses and deformations around a pile as consolidation proceeds are plotted and related to the quantities such as a wall friction, and point and total loads relevant to analysis and design.

show abstract

Section: General Proceduresmentioning

confidence: 99%

Effects of driving and subsequent consolidation on behaviour of driven piles

Desai

1978

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

show abstract

“…This formulation was extended to more complex problems by Yokoo et al 89, 90, Smith and Hobbs 91 and Valliappan et al 92. Smith and Hobbs 93 proposed a model for consolidation comparing the computed results to experiments obtained in a Cambridge centrifuge machine. Again, different orders of interpolation were used for displacements and pressures.…”

Section: Numerical Modelling: Finite Elementsmentioning

confidence: 99%

Computational geomechanics: The heritage of Olek Zienkiewicz

Pastor

Chan

Mira

et al. 2011

Numerical Meth Engineering

View full text Add to dashboard Cite

SUMMARYGeotechnical engineering design is based on mathematical, constitutive and numerical models implemented in computer codes which are able to predict the behaviour of geostructures and foundations under a wide variety of loading conditions, sometimes demanding or extreme. Prediction is fundamental in areas such as seismic engineering, marine foundations or landslide hazard analysis. No computer code is better than the mathematical, constitutive and numerical models which it implements. This paper is devoted to (i) reviewing the decisive contributions of Professor Olek Zienkiewicz to the development of mathematical, constitutive and numerical models in geotechnical engineering and (ii) presenting some extensions based on his work which have been proposed by the authors. The extensions to be described here are the following: (i) a particularization of the u − p w Zienkiewicz model to the case of fast catastrophic landslides (ii) an extension of the generalized plasticity model proposed by him and (iii) an SPH numerical model for the propagation of fast catastrophic landslides.

show abstract

“…Although the von Mises and DruckerPrager yield surfaces are easier for implementation in a finite element code, owing to the absence of corners, care must be taken when choosing input parameters. Further to this, Smith & Hobbs (1976) showed an extension of the finite element method to incorporate consolidation in the soil, coupling its mechanical and hydraulic behaviour. Biot's theory of consolidation was implemented in a finite element program and applied to the analysis of embankments on soft ground, where the predicted settlement of the foundation soil with time agreed well with observations.…”

Section: The Beginningsmentioning

confidence: 99%

Contributions to Géotechnique 1948–2008: Constitutive and numerical modelling

Zdravković¹,

Carter²

2008

Géotechnique

View full text Add to dashboard Cite

A review of the first 60 years of Géotechnique publications shows clearly how the subject of soil mechanics has evolved. In terms of constitutive and numerical modelling of soil, early forms of numerical analysis involved hand calculations of ultimate states applying classical methods of analysis: limit equilibrium, limit analysis or stress field solutions. Consequently, the soil was considered to behave as a rigid plastic material, and to follow one of the two basic failure laws of classical soil mechanics, namely the Tresca or Mohr–Coulomb failure criteria. For assessing the deformation of structures, soil was normally considered to be linear elastic. The foundations of modern numerical analysis and constitutive modelling were laid in the early to mid 1960s, with the development of the finite element method and the postulation of the critical state framework of soil behaviour respectively. Clearly, the continuous advancement of computer power has been essential in applying new developments to modern geo-technical analysis. This paper reviews some of the main milestones in the evolution of geotechnical analysis in the past 60 years, commenting, where appropriate, on what problems still lie ahead.

show abstract

Biot analysis of consoidation beneath embankments

Cited by 36 publications

References 0 publications

Effects of driving and subsequent consolidation on behaviour of driven piles

Effects of driving and subsequent consolidation on behaviour of driven piles

Computational geomechanics: The heritage of Olek Zienkiewicz

Contributions to Géotechnique 1948–2008: Constitutive and numerical modelling

Contact Info

Product

Resources

About