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Results of incremental creep tests performed on cohesionless subgrade materials and stamp sand are presented with the results of conventional triaxial tests performed on the same soil at comparable density and water content. The Mohr-failure envelope and the shear strength data from the incremental creep tests are presented. The shear strength values of the specimens of the incremental creep tests are compared with the shear strength values obtained from conventional triaxial and cyclic triaxial tests. This comparison showed that the incremental creep test data could be and were used to model and predict the behavior of granular materials subjected to cyclic loading.
shear strength, cohesionless soils, incremental creep tests, cyclic loading, triaxial loading, plastic strains
Assistant Professor of Civil Engineering, Michigan State University, E. Lansing, Mich.
Assistant Professor of Civil Engineering, University of Missouri, Rolla, Mo.
Research assistant, Michigan State University, E. Lansing, Mich.
Ministry of Public Works, Monrovia,