چكيده به لاتين
Abstract
Previous studies on carbonate soils shows that shear behavior of these sediments are different from siliceous sands. Engineering properties and strength parameters of calcareous sediments are depended on their specific site. Thus, it is not acceptable to use results of an investigation on a specific calcareous sand for other carbonate sediments in a different location.
In this study, shear behavior of Hormoz carbonate sand with two conditions, isotropic and anisotropic consolidation states have been studied. Samples were consolidated under mean effective stress of 100, 200 and 300 kPa with loose, medium and dense relative densities. Then the results of anisotropic and isotropic consolidated specimens were compared.
They were compared by drawing the axial strain-deviatoric stress plot. for initial axial strain deviatoric stress of the sand in anisotropic consolidated state was rising and for greater axial strain this trend was reversed. It was observed that dilative behavior of the sand increases when it has anisotropic consolidation.
Keywords: anisotropic consolidation, carbonate sand, triaxial test, shear strengh
