Journal ArticleDOI
Cavity expansion in cohesive frictional soils
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In this article, closed form solutions for the expansion of cylindrical and spherical cavities in an ideal, cohesive frictional soil are presented for infinitesimal (small strain) deformations.Abstract:
Closed form solutions are presented for the expansion of cylindrical and spherical cavities in an ideal, cohesive frictional soil. An explicit solution for the pressure-expansion relationship can be obtained for infinitesimal (small strain) deformations. For finite deformations it is necessary to adopt a numerical approach to obtain the complete pressure-expansion relationship and it is found that the cavity pressure approaches a limiting value for infinite deformation. It is, perhaps surprisingly, possible to determine the precise value of this limiting pressure analytically. It is suggested that the small strain solution for a cylindrical cavity is applicable to the interpretation of pressuremeter tests in sand, and that the solutions for limit pressures have application to the problem of pile installation and the end bearing pressure of deep foundations. L'article presente des solutions de forme fermee pour l'expansion de cavites cylindriques et spheriques dans un sol ideal coherent a frottement. On pe...read more
Citations
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Journal ArticleDOI
Finite cavity expansion in dilatant soils: loading analysis
Hai-Sui Yu,Guy T. Houlsby +1 more
TL;DR: An analysis of the quasi-static expansion of a cylindrical or spherical cavity in an infinite dilatant elastic-plastic soil is presented in this article, where closed form solutions for the stress and displacement fields in the soil during the expansion of the cavity are given.
Journal ArticleDOI
Design of driven piles in sand
TL;DR: In this paper, a new framework for axial capacity estimation of piles driven into sand is presented, which takes account of the physical processes, is consistent with the existing database of load test results and is sufficiently flexible to permit refinement as new data become available.
Book
Plasticity and Geomechanics
R. O. Davis,A. P. S. Selvadurai +1 more
TL;DR: Theoretical work hardening properties of elastic and inelastic deformation have been studied in this article, where the authors present a uniqueness theorem for elastic deformation and limit analysis and limiting equilibrium.
Journal ArticleDOI
Analysis of Cone Resistance: Review of Methods
Hai-Sui Yu,James K. Mitchell +1 more
TL;DR: Comparison with limited experimental data indicates that cavity expansion theories give the closest overall agreement between predicted and measured penetration resistance.
Proceedings ArticleDOI
Evaluation of Relative Density and Shear Strength of Sands from CPT and DMT
TL;DR: In this paper, the authors summarise the experience gained by the writers in the interpretation of the cone penetration test (CPT) and flat dilatometer test (DMT) for the assessment of the geotechnical properties of sands.
References
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Journal ArticleDOI
Expansion of Cavities in Infinite Soil Mass
TL;DR: In this article, a general solution is presented to the problem of the expansion of SPHERICAL and CYCLDRICAL CAVITIES in an InFINITE SOIL MASS, and it is shown that the principal PARAMETERS AFFECTING the ULTIMATE CAVITY PRESSURE are: the INITIAL GROUND STRESS, STRENGTH and VOLUME CHANGE CHARACTERISTICS of the Soil, and and the RIGIDity INDEX of the SOIL (DEFINED as the RATIO OF SHEAR MODUL
Journal ArticleDOI
The theory of indentation and hardness tests
R F Bishop,R Hill,N F Mott +2 more
TL;DR: In this paper, a discussion of the indentation of ductile materials by cylindrical punches with conical heads is given, where it is shown that the load rises towards a maximum value which is not approached until the base of the cone has travelled four to five diameters into the copper block.
Journal ArticleDOI
Driven piles in clay - the effects of installation and subsequent consolidation
TL;DR: In this article, the effects of installing a driven pile on the strength of the soil were investigated using a work-hardening elasto-plastic soil model, which has the unique feature of allowing the strength to change as the water content changes, thus it is possible to calculate the new intrinsic soil strength at any stage during consolidation.
Journal ArticleDOI
Undrained plane-strain expansion of a cylindrical cavity in clay: a simple interpretation of the pressuremeter test
TL;DR: In this paper, a study was made of the problem of interpreting the results of Menard pressuremeter tests on soil in situ, where a cylindrical cavity is expanded by internal pressure, and the relation between applied pressure and cavity volume change is measured.