Bearing Pressure—SPT Correlations for Expanded Base Piles in Sand

by William J. Neely, Franki Foundation Co, United States,

Document Type: Proceeding Paper

Part of: Foundation Engineering: Current Principles and Practices


Design of enlarged base piles is usually carried out using correlations between SPT N values and point resistance. The results of full scale load tests are used to show that base resistance is strongly influenced by grain size characteristics and new correlations are proposed which include both the N values and grain size of the sand.

Subject Headings: Soil pressure | Load and resistance factor design | Correlation | Piles | Sandy soils | Dynamic loads | Dynamic pressure | Load tests

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