Journal
CANADIAN GEOTECHNICAL JOURNAL
Volume 46, Issue 5, Pages 513-535Publisher
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/T09-003
Keywords
cyclic shear strength; bearing capacity; clay; sand; silt; design diagrams
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Cyclic loading can be important for the foundation design of structures, both offshore, along the coast, and on land, and for the stability of slopes. This is illustrated by several examples. The paper discusses how soil behaves under cyclic loading, both for structures and for slopes, and shows that the cyclic shear strength and the failure mode under cyclic loading depend strongly on the stress path and the combination of average and cyclic shear stresses. Diagrams with the cyclic shear strength of clay, sand, and silt that can be used in practical design are presented. Comparisons between calculations and model tests indicate that foundation capacity under cyclic loading can be determined on the basis of cyclic shear strength determined in laboratory tests.
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