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Area of base is A^ = b x b = 0.16 m Length of pile penetrating sand is t2 = L - tj = 2 m t2

Bearing capacity factor (from Berezantzev): basic value B^ = 95.5 , slenderness correction at = 0.83 , giving bearing capacity factor

Vertical total stress a^ b = ^Yk x t1j + ^Yk x t2y = 188 kPa

Pore pressure Ub = Yw( - dw) = 88.3 kPa Vertical effective stress a'vkb = avk b - Ub = 99.7 kPa Characteristic base resistance

Shaft in clay

Area of shaft in clay below water table is As = 4b x ( - dw) = 11.2 m2

Undrained adhesion factor (US Army Corps of Engineers) a = 0.8©

Characteristic shaft resistance in clay Rsk =-= 268.8kN©

1 YRd

Shaft in sand

Adopting the method given by Fleming et al. for calculating skin friction...

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