Experimental Investigation into Multistage versus Conventional Triaxial Compression Tests for a C-Phi Soil

Mohamed A. Shahin; Alice Cargeeg

doi:10.4028/www.scientific.net/AMM.90-93.28

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 90-93Experimental Investigation into Multistage versus...

Experimental Investigation into Multistage versus Conventional Triaxial Compression Tests for a C-Phi Soil

Abstract:

The procedure for conventional triaxial compression (CTC) test requires three separate soil specimens to be examined to failure under different confining pressures so that Mohr-Coulomb (or stress path) failure envelope can be determined and soil shear strength parameters can be obtained. An alternative procedure is the multi-stage triaxial (MST) compression test, which requires only one soil specimen to be tested at three stages of shearing with different confining pressures. There are several advantages for using MST over CTC, which apart from fewer soil specimens, include less laboratory time consumption and reduced effects of heterogeneity among the specimens tested. However, it has been argued in the literature that the advantages of using MST may be compromised by its inability to obtain reliable soil behavior or accurate shear strength parameters. In this paper, the accuracy of MST compared to CTC is investigated for a c-phi soil, and a simple procedure that can be adopted to rectify the MST results is proposed.

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Periodical:

Applied Mechanics and Materials (Volumes 90-93)

Pages:

28-32

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.90-93.28

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Online since:

September 2011

Authors:

Mohamed A. Shahin, Alice Cargeeg

Keywords:

C-Phi Soil, Laboratory Experiments, Multistage, Triaxial Compression

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References

[1] E. De Beer, The cell test: Geotechnique Vol. 2 (1950), pp.162-172.

Google Scholar

[2] T.C. Kenney and G.H. Watson, Multi-stage triaxial for determining c' and phi' of saturated soils, in: Proceedings of the 5th International Conference on Soil Mechanics and Foundation Engineering, Paris, France (1961), pp.191-195.

Google Scholar

[3] A.M. Sridharan and S.N. Rao, New Approach to multistage triaxial test Journal of Soil Mechanics and Foundations Division Vol. 98 (1972), pp.1279-1286.

DOI: 10.1061/jsfeaq.0001813

Google Scholar

[4] R.L. Kondner, Hyperbolic stress-strain response: cohesive soils: Journal of Soil Mechanics and Foundations Division Vol. 89 (1963), pp.115-143.

DOI: 10.1061/jsfeaq.0000479

Google Scholar

[5] M.R. Nambiar, G.V. Rao and S.K. Gulhati, Multistage triaxial testing: A rational procedure: Strength Testing of Marine Sediments: Laboratory and In-Situ Measurements Vol. 883 (1985), pp.274-293.

DOI: 10.1520/stp36340s

Google Scholar