The Coefficient of Earth Pressure at Rest by Means of the Granular Mechanics

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Resumen

There is abundant evidence that the coefficient of earth pressure at rest, K0, is somehow related to the internal friction angle of soils. Jaky’s semi-empirical formula is considered to be a sufficiently precise relationship for practical purposes, although its derivation includes some arbitrary approximations. Alternatively, granular mechanics may be used to obtain a rational relationship between these two quantities, based on the assumption that stresses are transmitted as conjugated chains of forces along the edges of an octahedral lattice. Two experimental extreme conditions of an infinite soil slope are considered: the state at rest, when its inclination is zero, and the plastic state, when its inclination equals the friction angle. Eliminating the angle of the assemblage of grains, a relationship between K0 and the angle of friction is directly achieved in a very simple way. As shear stresses are forbidden in the direction of the ground level lines, there are only two admissible positions of the base of the octahedral lattice: the diagonal and the parallel to the slope, which are related to the triaxial and biaxial compression tests, respectively. The relationships thus obtained are supported by the experimental data reported by several authors.

Idioma originalInglés
Título de la publicación alojadaChallenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 3
EditoresMarco Barla, Alessandra Insana, Alice Di Donna, Donatella Sterpi
EditorialSpringer Science and Business Media Deutschland GmbH
Páginas166-173
Número de páginas8
ISBN (versión impresa)9783031128509
DOI
EstadoPublicada - 2023
Evento6th International Conference of the International Association for Computer Methods and Advances in Geomechanics, IACMAG 2022 - Turin, Italia
Duración: 30 ago. 20222 set. 2022

Serie de la publicación

NombreLecture Notes in Civil Engineering
Volumen288 LNCE
ISSN (versión impresa)2366-2557
ISSN (versión digital)2366-2565

Conferencia

Conferencia6th International Conference of the International Association for Computer Methods and Advances in Geomechanics, IACMAG 2022
País/TerritorioItalia
CiudadTurin
Período30/08/222/09/22

Nota bibliográfica

Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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