The performance of piles in liquefying ground under earthquake loading is a complex problem due to the effects of a progressive buildup of pore water pressures in the saturated soils. The loss of soil strength and stiffness due to liquefaction may develop large bending moments and shear forces in piles, possibly leading to pile damage. The significance of liquefaction-related damage to pile foundations has been clearly demonstrated by the major earthquakes that have occurred during past years. The present investigation is to find out the effect of earthquake induced lateral soil movement on piles in sloping ground. The present study was carried out by numerically. In this, 1995 Kobe earthquake data (Japan) is used. Parametric study has been done on the same model by varying slope in the soil layers and L/D ratio of the pile. The dynamic analysis was carried out for slope angle of 1V:1.5H in with L/D=16, L/D=25 & L/D=33. In each case, bending moment and displacement variation with depth of the pile is noticed. Based on the study, it is concluded that for a constant slope and constant depth of liquefiable layer lateral displacement and bending moment is significantly increased for L/D=16 when compared to higher L/D ratio’s of 25 and 33. However, further increase in L/D ratio is not having any significant effect in the lateral displacement.
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