عنوان مقاله [English]
Liquefaction of saturated sandy soils during earthquakes is a well known phenomenon that has attracted a great deal of attention during the last three decades. Most research has focused on the liquefaction of saturated sandy soils, whereas real soil is rarely made up of clean sand. Therefore, the liquefaction of sandy soils mixed with plastic and non-plastic clays or silty soils has become important. Although there is much research on the liquefaction of these types of mixed soil, some aspects of their behavior have not yet been discovered.In the current study, the effect of anisotropic consolidation, as well as stress reversal, on the behavior of sandy soils mixed with different percentages of non-plastic silt, is investigated. A total number of 67 cyclic triaxial tests are conducted. It is concluded that the angle of the Initial Phase Transformation Line (IPTL) in q-P' space is strongly affected by the
degree of stress reversal. Moreover, the percentage of fine content and initial isotropic and anisotropic consolidation has a clear effect on the angle of IPTL in q-P' space.