The uplift capacity of bored piles in dense calcareous soils was examined by field tests at three sites in Kuwait. The nine test piles were 0.5 m in diameter and extended to a maximum depth of 15 m below the ground surface. The mobilized skin friction and the coefficient of lateral earth pressure were determined and compared with values obtained in noncalcareous sands. Test results were compared with empirical correlations relating the skin friction to the standard penetration test results. Analysis of test data indicates substantial load transfer similar to clean silica sand, with no reduction for the presence of carbonates with this method of construction.
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Ismael et al. (1986) studied this question.
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