Abstract
Piles (or drilled shafts) have been an effective slope-stabilization scheme since the 1970s. However, limited knowledge regarding load transfer for piles within moving soil may cause design of the piles to be more conservative than is actually needed. The objective of this study is to provide guidance on the effects of pile diameter and spacing, so designers can reasonably account for these effects when predicting response of piles from lateral loading within moving soils. Based on measured soil movements and sliding surface locations from full-scale field monitoring of slopes stabilized with drilled shafts at different pile-spacing-to-diameter ratios (S/D), p-y analyses are performed to back-calculate “best fit” p- and y-multipliers that would lead to prediction of the measured bending moments in drilled shafts. The back-calculated p-y parameters are compared with values from literature and with one another to develop recommendations for predicting lateral resistance in piles for slope-stabilization applications.
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Iqbal, S. (2019). Performance-Based Procedure for Prediction of Lateral Resistance of Slope-Stabilizing Piles. In: Sundaram, R., Shahu, J., Havanagi, V. (eds) Geotechnics for Transportation Infrastructure. Lecture Notes in Civil Engineering , vol 28. Springer, Singapore. https://doi.org/10.1007/978-981-13-6701-4_38
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DOI: https://doi.org/10.1007/978-981-13-6701-4_38
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