Effect of Eccentricity in Sandy Slope of Laterally Loaded Single Pile

Abstract

An experimental study was proposed to understand the behaviour of single pile in sloping ground with various eccentricity. Cohesionless soil was used for conducting experiments with a horizontal ground and with a slope of 1V:2H. With calculated stiffness factor (T) as 92 mm, the eccentricity was varied as 0T, 0.5T and 1T. The lateral capacity of the pile in horizontal and sloping ground condition decreases with increase in eccentricity; the increase in lateral capacity was linear too. The bending moment increases with increase in load; but the depth of maximum bending moment was 0.15 m for 0T and 0.5T of eccentricity. For 1T of eccentricity, the depth of maximum bending moment varied to 0.07 m from the point of load. An equation was proposed to calculate the maximum bending moment of the pile for any eccentricity for a slope of 1V:2H, which is the governing factor for pile designing.

Single and Group Static Laterally Loaded Vertical Pile in Horizontal and Sloping Ground—A Review

“…The effect of slope is negligible when the ground inclination is less than 11.3°( [79,91]) and the influence of slope is neglected below the depth of fixity [92]. The effect of eccentricity in sloping ground is also studied, where reduction in capacity is mainly due to rigidity of the pile which decreases with reduction in depth of embedment [93].…”