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Coefficient of Influence of Pile Shape s

This coefficient represents the influence of a rectangular pile cross-section, the b/a ratio in particular. Its values are evident from the following graph (function of b/a):

Graph to determine pile shape coefficient s (a - length of the smallest side, b - the largest side)

For the NBN EN 1997-1 ABN standard, the shape coefficient s is defined as follows:

- for circular piles

- for square or rectangular piles

where:

a

-

shorter side of the pile base

b

-

longer side of the pile base

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