A reliable method to determine friction capacity of piles driven into clays
Book
·
OSTI ID:413532
High quality data on axial pile load tests in clay were selected from the public domain and put into a data base. Subsequently, statistical analyses of these data were performed to firstly assess the reliability of current offshore design criteria and, secondly, to develop a statistically more reliable design method. These analyses reveal that the ratio between average ultimate skin friction and undrained shear strength (=alpha) reduces with increasing degree of overconsolidation and increasing pile slenderness (=pile length over diameter ratio). Soil plasticity is shown to have a negligible influence on this correlation. A simple algorithm accounting for these parameters is obtained from statistical analyses. Predictions of pile capacity made using this new method are shown to be more accurate than those made using conventional current design criteria.
- OSTI ID:
- 413532
- Report Number(s):
- CONF-960525--
- Country of Publication:
- United States
- Language:
- English
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