Experimental py curves for a laterally loaded single pile in cement-improved soft clay

H Soltani, KK Muraleetharan - IFCEE 2015, 2015 - ascelibrary.org
IFCEE 2015, 2015ascelibrary.org
Performance of a single pile subjected to lateral loads was evaluated in a centrifuge
experiment. The pile was embedded partly in a soft clay layer overlying a dense sand layer.
A portion of the soft clay near the ground surface was improved with cement. Experimental
results were used to extract the py curves for the cement-improved soft clay and these
curves were compared with the curves obtained from the unimproved soil and the curves
found in literature. The experimentally extracted py curves reflected the observed cracking …
Performance of a single pile subjected to lateral loads was evaluated in a centrifuge experiment. The pile was embedded partly in a soft clay layer overlying a dense sand layer. A portion of the soft clay near the ground surface was improved with cement. Experimental results were used to extract the p-y curves for the cement-improved soft clay and these curves were compared with the curves obtained from the unimproved soil and the curves found in literature. The experimentally extracted p-y curves reflected the observed cracking pattern in the improved zone. Although the theory assumes that the p-y curve at a given depth is entirely controlled by soil at that depth, influence of adjacent soil layers were observed on the p-y curves.
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