Analysis of Triaxial Test for Granular Soils

by Paul R. Paslay,
Jay B. Weidler,


Serial Information: Journal of the Engineering Mechanics Division, 1969, Vol. 95, Issue 3, Pg. 587-610


Document Type: Journal Paper

Abstract: Based on an earlier analytic formulation for the isothermal flow of an idealized cohesionless soil, several implications are deduced for the triaxial test (a compression test in the presence of a hydrostatic pressure). A specific form for the loading surface and the flow rule are selected. Since normality is generally absent uniqueness is not expected and a criterion is established to choose the best solution from a group of possible solutions. The question of stability is examined. Finally, the effect of the elastic membrane normally used in triaxial testing on the behavior of the granular material is discussed. In certain important respects the limited analytical and numerical results appear to agree with experience in soil mechanics testing.

Subject Headings: Triaxial tests | Soil analysis | Soil tests | Compression tests | Cohesionless soils | Soil compression | Soil pressure | Granular materials

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