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NUMERICAL MODELLING OF CHICKEN-FOOT FOUNDATION

Author(s): Vipman Tandjiria

Journal: Civil Engineering Dimension ISSN 1410-9530
Volume: 1; Issue: 1; Start page: 14; Date: 1999;
Original page

Keywords: chicken-foot foundation | finite element | foundation

ABSTRACT
This paper presents an analysis of the chicken-foot foundation using the finite element method. The foundation is considered as a reinforced concrete slab resting on a number of reinforced concrete pipes filled with and surrounded by in-situ soil. The soil and the pipes were modelled by isoparametric solid elements while the slab was modelled by isoparametric thick-plate elements. The study was intended to illustrate the basic mechanism of the chicken-foot foundation. Three cases have been considered for the parametric studies. The parameters investigated are thickness of slab, length of pipes and spacing between pipes. It is shown that such a foundation improves the behaviour of the raft foundation. It is also found that all the parameters used in the parametric studies influence the behaviour of the chicken-foot foundation.