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To gain new insights into single pile responses to adjacent excavations in soft ground, numerical parametric studies are carried out. An advanced hypoplastic (clay) constitutive model which takes account of small-strain stiffness is adopted. The effects of excavation depths (i.e. formation level) relative to pile were investigated by simulating the excavation near the pile shaft (i.e., H e /L p =0.67), next to ( H e /L p =1.00) and below the pile toe ( H e /L p =1.33). Among the three cases, the excavation in case of H e /L p =1.33 resulted in the largest pile settlement (i.e. 7.6% d p ). On the other hand, the largest pile bending moment was induced in case of H e /L p =0.67.

A Parametric Study of Effect On Single Pile Integrity Due to An Adjacent Excavation Induced Stress Release in Soft Clay