- The effect of silt particles on the saturated sand under earthquake loads is controversial issue from few decades. Liquefaction phenomenon was observed in the silty soils during many past earthquakes and also there sever damages. The present study is carried out in order to understand the effect of silt content on the liquefaction resistance of the silty sand using relative density approach. The study is carried out by keeping the relative density constant as 30% and varying the amount of silt from 0% to 50% for different frequency values 2Hz, 3Hz, 4Hz, and 5Hz using small scale uniaxial, horizontal shake table instrument. From the present study it is observed that amount of silt content and frequency of vibration significantly influence the liquefaction resistance of soil. There is a decrease in liquefaction resistance up to 30% of silt content beyond this it reverse its trend and liquefaction resistance decreases with increase in the frequency of vibration. The variations of pore water pressure and sand bed settlement are also studied. Results of this work will give some contributions to understand the behavior of silty sand, with respect to silt content and frequency on its liquefaction resistance

Keywords : Liquefaction Resistance, Horizontal Shake Table, Silt Content Effect, Effect of Frequency of Vibration, Pore Water Pressure, Sand Bed Settlement