Finite Strain Analysis of Pressuremeter Test
Publication: Journal of Geotechnical Engineering
Volume 116, Issue 6
Abstract
In this work, the plane strain pressuremeter test is examined using a finite strain elasto-plastic analysis. The pressure-meter expansion is analyzed as a finite strain problem using a Lagrangian formulation employing the ``cap model'' of DiMaggio and Sandler. The analysis is performed by modeling the pressure-meter expansion as a cavity expansion of a segment of the walls of an existing cylindrical cavity. The solution does not suffer any major inconsistencies and its success depends mainly on the use of the appropriate constitutive equation. Therefore, a more reliable analysis can be performed and more accurate soil parameters can be obtained. It is the aim of this work to evaluate the importance of some of the most commonly made assumptions in the analysis of the results of the pressuremeter test.
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References
1.
DiMaggio, F. L., and Sandler, I. S. (1971). “Material model for granular soils.” J. Engrg. Mech. Div., ASCE, 97(3), 935–950.
2.
Hughes, J. M. O., Worth, C. P., and Windle, D. (1977). “Pressuremeter tests in sands.” Geotechnique, London, England, 4(27), 455–477.
3.
Kiousis, P. D., Voyiadjis, G. Z., and Tumay, M. T. (1988). “A large strain theory and its application in the analysis of the cone penetration mechanism.” Int. J. Numerical and Analytical Methods in Geomechanics, 12(1), 45–60.
4.
Selvadurai, A. P. S. (1984). “Large strain and dilatancy effects in pressuremeter.” J. Geotech. Engrg., ASCE, 110(3).
5.
Voyiadjis, G. Z., Kiousis, P. D., and Tumay, M. T. (1984). “A Lagrangian formulation theory for some large deformation problems in geomechanics.” Presented in the International Union of Theoretical and Applied Mechanics (IUTAM), Lungby, Denmark, Aug.
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Published In
Journal of Geotechnical Engineering
Volume 116 • Issue 6 • June 1990
Pages: 1002 - 1007
Copyright
Copyright © 1990 ASCE.
History
Published online: Jun 1, 1990
Published in print: Jun 1990
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