Civil Engineering Reference
In-Depth Information
or
τ
s
=
βσ
z
(23.8)
where
α
is a shaft friction factor for undrained loading and, for drained loading,
δ
.
β
=
K
tan
4.
In practice the capacity of piles is often determined from full-scale load tests or
from pile driving formulae. The capacity of groups of piles can be found from
the capacity of a single pile with an efficiency factor or from the geometry of an
equivalent foundation.
References
Berezantzev, V. G., V. S. Khristoforov and V. N. Golubkov (1961) 'Load bearing capacity and
deformation of piled foundations',
Proceedings of 5th International SMFE Conference, Paris
,
Vol. 2.
Skempton, A. W. (1951) 'The bearing capacity of clays',
Proceedings of Building Research
Congress
, Vol. 1, pp. 180-189, ICE, London.
Whitaker, T. (1976)
The Design of Piled Foundations,
Pergamon Press, London.
Further reading
Fleming, W. G. K., A. J. Weltman, M. F. Randolph and W. K. Elson (1992)
Piling Engineering
,
Taylor & Francis.
Tomlinson, M. J. (1994)
Pile Design and Construction Practice
, Spon Press (UK).
Whitaker, T. (1976)
The Design of Piled Foundations
, Pergamon Press, London.
Randolph M. F., M. B. Jamiolkowski and L. Zdravkovic (2004) Load carrying capacity of foun-
dations, in advances in geotechnical engineering,
Proc. The Skempton Conference
, London,
2004. Ed. Jardine, R.J., D.M. Potts and K.G. Higgins, Thomas Telford, London, Vol. l,
pp. 207-240.
