Nanjing silty clay with fine sand interbed is a sediment deposited alternately by silty clay and fine sand

appearing to be a "thousand layers cake"; Nanjing fine sand mainly consists of schistous grain and is different from the common sand with round quartz grains. Nanjing fine sand is anisotropic because of the schistous grain. Through analyzing liquefaction test results of Nanjing silty clay with fine sand interbed and fine sand

the following conclusions are drawn: wheither anisotropic consolidation or isotropic consolidation

the ratio of liquefaction shear stress of Nanjing silty clay with fine sand interbed is larger than that of fine sand when consolidation pressure σ’3 is 100 kPa; however

the both are proximity when consolidation pressure σ’3 is 200 kPa. So

liquefaction potential of these soils should be considered carefully in important or critical engineerings.