Publication Abstract

Proceedings - Fifth International Conference & Exhibition on Piling and Deep Foundations, 1994, Bruges, Belgium, (DFI)

Pile capacity as a function of time in clayey and sandy soils
M. Svinkin, C.M. Morgano & M. Morvant

Knowledge of pile capacity when some time elapses after end of initial driving is important for design of pile foundations. In this paper, assessment of pile capacity as a function of time has been performed for clayey and sandy soils. On the basis of an existing equation, soil setup in clayey soil was verified for long term capacity of seven piles during a period of 3-5 weeks and for one pile during a period of 4 months after pile installation. A linear pile capacity vs. time relationship was derived for piles in unsaturated sandy soils. This relationship was found to be the same on three different sites with various type of piles. Nonlinear expressions were suggested for a range of setup factors for 5 piles in saturated sandy soils on one site. Derived results can be used as a guide for evaluation of long term capacity to choose sensible pile penetration.

 article #787; publication #36 (IC-1994)