Modeling the p-δ-behavior of single friction pile in compacted fine-grained soils
6th International Conference on Unsaturated Soils, UNSAT 2014, Sydney, Avustralya, 2 - 04 Temmuz 2014, cilt.2, ss.1791-1797, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası: 2
- Basıldığı Şehir: Sydney
- Basıldığı Ülke: Avustralya
- Sayfa Sayıları: ss.1791-1797
- Maltepe Üniversitesi Adresli: Evet
Özet
In 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-δ-) 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-δ- 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.