期刊
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
卷 24, 期 11, 页码 789-803出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.soildyn.2004.05.002
关键词
cyclic triaxial tests on dry sand; fabric; wave velocities; dynamic soil properties; small strain stiffness; shear modulus; damping ratio; resonant column tests
Initial fabric of a soil induced by its cyclic strain history is an important parameter among others like void ratio, state of stress and amplitude concerning the further accumulation of deformations under cyclic loading. It is of high importance to determine methods in order to estimate the initial fabric of the grain skeleton or the cyclic loading history of the soil. An attempt is made in this paper to correlate small strain stiffness of non-cohesive soil with its cyclic loading history. For this purpose several cyclic triaxial tests with specimens subjected to cyclic axial loading were performed and changes of small strain soil properties due to this cyclic loading were studied. All these tests showed only moderate changes of small strain stiffnesses independently of the different boundary conditions. Thus, a correlation between fabric or strain history and small strain stiffnesses seems not to be possible. (C) 2004 Elsevier Ltd. All rights reserved.
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