Abstract
ABSTRACTLaterally-loaded vertical piles are commonly designed by p-y curves or two-dimensional (2D) analytical methods. The former are vaguely correlated while the latter are oversimplified and conservative. Three-dimensional (3D) analysis can be used, but it is time consuming for practical applications. An improved analytical cone method is thus developed using spreadsheets. Subject to the lateral load under greenfield condition, the soil in front of a vertical pile is under constant volume plastic compression, heaving at the free boundary on top. Stress release occurs in the soil behind the pile. These mobilised soil masses are idealised as inclined right circular cones. The pile below the cone is subjected to the direct compression at the back and shear at the sides. Thus, the pile behaves as a simply-supported beam with one movable support at the loading point. This enables the rational prediction of the pile length required to satisfy the vertical tangent and the “zero-toe-kick” criteria. By plane of...
Published Version
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