Relationship between axial strain and liquefaction under anisotropic loading conditions [Anizotropik Yükleme Koşullari{dotless}nda Eksenel Deformasyon İle Si{dotless}vi{dotless}laşma İlişkisi]

Soil liquefaction has been extensively defined via the laboratory and in-situ tests,regarding to either the generation of excess pore water pressure or the soil vertical strain reaching a particular level under isotropic and anisotropic conditions. in this study,concolidated-drained anisotropic loading conditions were applied herein to simulate the stresses under a shallow foundation at representative depths. three different particle size of sandy soils with two different relative density conditions were adopted for the saturated drained cyclic tests. the number of cycle load (26 cycles) within a frequency of 1second was chosen depending on a constant earthquake magnitude. the variation of axial strain during the tests was monitored in order to evaluate the liquefaction behaviour of the three types of the sands. the axial strain is found to be relative density dependent. ione sand and beach sand samples could not reach the initial liquefaction state due to dilation. especially,the least uniform and coarsest concrete sand with 90 % relative density tends to liquefy based on the axial strain.