چکیده مقاله
This paper describes a series of drained monotonic plane strain test results on Leighton Buzzard sand under different initial magnitudes of intermediate principal stress, 2 The variations of stress ratio 2/ 1 3 were monitored during shearing to clarify the significance of intermediate principal stress It is shown that the stress strain response of sand, its shear strength and stress ratio 2/ 1 3 at failure, do not vary significantly and almost independent of the initial magnitudes of 2, but are dependent on its initial void ratio, implying that if different initial values of 2 create various directional anisotropic structures they play no part in the plane strain tests Also a numerical model, which is capable of including 2, is proposed to predict particularly stressstrain response of sand and magnitude of 2 at failure
کلیدواژهها
نویسندگان
J. Bolouri-Bazaz
Civil Engineering Department, Ferdowsi University, Mashad, Iran
شیوه ارجاع
J. Bolouri-Bazaz, ,1382,AN INVESTIGATION OF “b VALUE” DETERMINATION AND INTERMEDIATE PRINCIPAL STRESS VARIATION IN POROUS MEDIA,6th International Conference on Civil Engineering,Isfahan
ارائهشده در
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