DEEP PENETRATION OF SHALLOW FOUNDATIONS ON NON-HOMOGENEOUS SOIL
作者： Y. Hu , M.F. Randolph
DOI: 10.3208/SANDF.38.241
关键词: Bearing capacity 、 Geotechnical engineering 、 Shallow foundation 、 Non homogeneous 、 Computer simulation 、 Plasticity 、 Finite element method 、 Upper and lower bounds 、 Deep penetration 、 Engineering
摘要: ABSTRACT The finite element method has been used to compute the bearing response of shallow foundations penetrating deeply into non-homogeneous soil, for comparison with classical plasticity solutions. numerical approach uses remeshing and interpolation techniques, together conventional small strain analysis. computed capacity compared lower upper bound calculations, based on idealised modelling soil conditions around foundation, both smooth rough at foundation-soil interface. It is shown that solutions ignore strength contribution adjacent above plane foundation provide good estimates a penetrated from surface. This due compensating effect weak trapped beneath foundation. By comparison, are pre-embedded show appreciably higher capacity. local heave also be significant in increasing
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