Taylan Kutlu Z.N.Vanapalli S.K.Han Z.2024-07-122024-07-1220149.78114E+122-s2.0-84901636262https://hdl.handle.net/20.500.12415/91636th International Conference on Unsaturated Soils, UNSAT 2014 -- 2 July 2014 through 4 July 2014 -- Sydney, NSW -- 105275In this paper, the contribution of the matric suction towards the shaft bearing capacity of a single pile loaded in a compacted fine-grained soil (i.e. Indian Head till) is investigated based on the load-displacement (i.e. p-?-) relationships derived from both model pile tests and Finite Element Analyses (FEA). The FEA are undertaken using the commercial software SIGMA/W. A modulus of elasticity model and a modified Mohr-Coulomb yield surface function that consider the contribution of the matric suction are jointly used in the FEA to formulate an elastic-perfectly plastic constitutive model. There is a reasonable agreement between the p-?- relationships modeled from the FEA and measured from model pile tests. Both measured and modeled results suggest that there is a significant contribution of the matric suction towards the shaft bearing capacity of single piles in compacted fine-grained soils. © 2014 Taylor & Francis Group.eninfo:eu-repo/semantics/closedAccessConference Object179717912