Evaluation of Sand Constitutive Models for Analysis of Piled Raft Foundation

https://doi.org/10.24237/djes.2018.11105

Authors

  • Hassan O. Abbase Department of Civil Engineering, Engineering College, University of Diyala, Iraq

Keywords:

Constitutive models, Numerical modeling, piled raf

Abstract

Constitutive models play an important origin in the geotechnical problems design. In order to make the models useful to geotechnical engineers, some numerical predictions are presented to compare the performance of different models with experimental results (Full scale tests). It was found from this study that hardening soil model (HS small model) gave good prediction of settlement more than hardening model and Mohr-Coulomb model. Also, the errors in prediction of maximum settlement pile raft, pile group and raft are ranged (3-4) %, (6-7) % and (27-36) % for hardening soil with small strain model, hardening model and Mohr-Coulomb model respectively.

Downloads

Download data is not yet available.

References

. Chore, H.S. and Siddiqui, M.J., Analysis of the piled raft for three load patterns: A parametric study Coupled Systems Mechanics, 2, (3) (2013) 289-302.

. Duncan, J.M. & Chang, C.Y. Nonlinear Analysis of Stress and Strain in Soil, Journal of Soil Mechanics and Foundations Division, ASCE, (96), (1970), 1629-1653.

. Hartman, F. and Jahn, P., Boundary Element Analysis of Raft Foundations on Piles, Mechanical 3, (2001), 351–366, Kluwer Academic Publishers. Netherlands.

. Hooper, J., Observations on the Behavior of a Piled-Raft Foundation on London Clay, Proc. Inst. Civ. Engrs., 55, (2), (1973), 855-877.

. Poulos and Davis, E. H., H. G., (1972), Rate of Settlement under Two-and Three Dimensional Conditions, Geotechnique, 22, (1), 95-114.

. Reul, O. and Randolph, M. F., Piled Rafts in Over consolidated Clay: Comparison of In situ Measurements and Numerical Analyses, Géotechnique, 53, (3), (2003), 301-315.

. Schanz, T. and Vermeer, P.A. On the Stiffness of Sands, Geotechnique, 46 (1), (1998), 145-151.

. PLAXIS-3D, Plaxis Material Manual, Version 1, 2013.

. Hussein, H.H., Full Scale Models of Pile-Raft Foundation Loading Tests in Sandy Soil, Ph.D. Thesis, University of Technology, Department of Building and Construction, 2015.

. Brunner, G., and Peter, S., Gas extraction in the presence of an entrainer, Proceedings of 2nd World Conference of Chemical Engineers, Montreal, Canada, 1981, 81 – 86.

Published

2018-03-01

How to Cite

[1]
H. O. Abbase, “Evaluation of Sand Constitutive Models for Analysis of Piled Raft Foundation”, DJES, vol. 11, no. 1, pp. 28 –, Mar. 2018.