Mathematical characterization of one-dimensional compression, undrained and drained sand behavior in axisymmetric tests at high pressures

Eulalio Juárez-Badillo

In the proceedings of: GEO2011: 64th Canadian Geotechnical Conference, 14th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering

Session: Other General

ABSTRACT: The theoretical general equations of compressibility, stress-strain relations for geomaterials provided by the principle of natural proportionality are applied to describe the compression of sands to axial stresses up to 850.0 MPa; three different initial densities of quartz, Cambria, and gypsum sands are considered. Also the undrained sand behavior in compression and extension tests with initial confining pressures up to 68.9 MPa and also the drained sand behavior in compression and extension tests with initial confining pressures up to 52.0 MPa are considered.

RESUMEN: Las ecuaciones teóricas de compresibilidad y las relaciones esfuerzo-deformación para geomateriales que establece el principio de proporcionalidad natural, se aplicaron para describir la compresibilidad de arenas bajo cargas axiales de hasta 850.9 MPa; se consideraron probetas con tres diferentes densidades iniciales de arena de cuarzo, Cambria y gypsum. También se consideró el comportamiento no-drenado de la arena en pruebas de compresión y extensión con confinamientos iniciales hasta de 68.0 MPa, así como el comportamiento drenado en pruebas de compresión y extensión, utilizando confinamientos iniciales de hasta 52.0 MPa.

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