Akpila, S B
Keywords: Immediate settlement, poisson ratio, modulus of elasticity, models
Abstract: Bearing capacity and settlement response of raft foundations placed on sand was carried out using standard penetration test on soil lithology consisting of loose, silty to slightly silty SAND, overlying medium-dense slightly silty SAND. Results showed that allowable bearing capacity, qa, had a decreasing trend with an increase in raft foundation breadth whereas for a given foundation breadth, qa increased with foundation depth. Allowable bearing capacity also decreased as the ratio of foundation depth, Df, to breadth, B ratio (Df/B) decreased. Immediate and consolidation settlement increased with foundation breadth, bearing pressure and foundation depth. Comparatively, Burland and Burbidge approach had a higher total settlement against those of Harr. The predictive models can be useful for preliminary design purposes on sites with similar conditions
[View Complete Article]