Research Article
May 1968
Behavior of Granular Materials Under High Stresses
Publication: Journal of the Soil Mechanics and Foundations Division
Volume 94, Issue 3
Abstract
Triaxial tests at mean normal stresses up to 1,200 kg per sq cm on a medium-grained, uniform quartz sand show that the nature of sand deformation varies with pressure. As mean normal stress increases, crushing becomes more pronounced and dilatancy effects gradually disappear. Beyond breakdown pressure, at which all effects of initial void ratio disappear, sand behaves essentially as a linearly deformable solid with modulus of deformation E proportional to mean normal stress q. In the same range, sand strength is characterized by a constant angle of internal friction, φ, equal to the angle of interparticle friction from the low pressure tests. Below breakdown pressure, E increases as a power function of q; however the exponent of this function varies with pressure and, to a certain degree, with the initial void ratio of sand. The strength envelopes in this range are all curved and depend on the initial void ratio of sand. Relative compressibility of granular materials generally increases with pressure and may be responsible for scale effects in a number of passive pressure phenomena.
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Published In
Journal of the Soil Mechanics and Foundations Division
Volume 94 • Issue 3 • May 1968
Pages: 661 - 688
Copyright
© 1968 American Society of Civil Engineers.
History
Published in print: May 1968
Published online: Feb 12, 2021
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Aleksandar S. Vesić, F.ASCE
Prof. of Civ. Engrg., Duke Univ., Durham, N. C.
G. Wayne Clough, AM.ASCE
Soils Engr., U. S. Army Corps of Engineers, Lower Mississippi River Div., Viksburg, Miss., presently Graduate Student, Univ. of California, Berkeley, Calif.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.