Abstract
ABSTRACT Variation of uplift capacity of horizontal circular anchor plate in sand with its diameter has been studied by using lower bound finite element limit analysis. The soil friction angle is a function of stress level. For plates with similar embedment ratios (H/D) but different diameter (D), the in-situ stress experienced at the top of the plate due to self-weight of the overlying soil would be different which resulting in varying degrees of the mobilized friction angle of soil. This would lead to varying capacity factors for plates of different diameters but similar H/D. The present numerical study has been conducted for wide range of D and H/D of rough anchor plates embedded in both loose Hostun and dense Toyoura sands. The uplift capacity factor has been found to increase with decreasing value of anchor diameter. The average uplift pressure, however, decreases with decreasing value of diameter of plate anchor.
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