Research Article
Oct 1982
Repetitive Load Deformation of Cohesionless Soil
Publication: Journal of the Geotechnical Engineering Division
Volume 108, Issue 10
Abstract
Presented is a simplified procedure for obtaining material characterization of free draining cohesionless soils for use in calculating permanent deformations of transportation support systems. Experimental data is presented in support of the described simplified procedure, which shows that plastic strains are largely governed by the deviator stress level and, thus, the factor of safety against shear failure. Plotting logarithm of plastic strain versus logarithm of number of load repetitions resulted in a slope essentially independent of confining pressure or deviator stress level for stress levels less than 60%. Plotting logarithm of plastic strain at a given number of load cycles versus deviator stress level resulted in a slope which was essentially constant. These two findings allowed the development of the presented procedure resulting in a method of obtaining material characterization which gives a significant savings in laboratory testing time over present methods. Such material characterization is an essential requirement for predicting the rate of accumulation of permanent deformation (rutting) using the well-known layered elastic or non-elastic technique.
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Published In
Journal of the Geotechnical Engineering Division
Volume 108 • Issue 10 • October 1982
Pages: 1215 - 1229
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Oct 1982
Published online: Feb 11, 2021
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Authors
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Vishnu A. Diyaljee, AM.ASCE
Former Grad. Student, Dept. of Civ. Engrg., Queen's Univ., Kingston, Ontario, Canada K7L 3N6
Gerald P. Raymond, M.ASCE
Prof., Dept. of Civ. Engrg., Queen's Univ., Kingston, Ontario, Canada K7L 3N6
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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.
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.