Akademik Veri Yönetim Sistemi
Proceedings of 4th Civil Engineering & Architecture Conference-ICEARC'25, Trabzon, Türkiye, 17 - 19 Mayıs 2025, ss.948-954, (Tam Metin Bildiri)
In this study, a series of numerical analyses of strip foundations on cohesionless sloping soils were performed using PLAXIS 2D finite element method. The relationship between key parameters influencing the bearing capacity of strip footings on sloping soils and the bearing capacity factor (Nγq) is investigated. These parameters include the slope angle (β), the distance from the strip footing to the top of the slope (b), the internal friction angle (ϕ), and the unit weight of the soil (γ). The soil has a slope angle () of 10˚ 20˚ and 30˚, distance of the footing to the slope crest to the width of the footing (b/B) of 0, 0.5, 1, 1.5, 2, 3, 4, 5, 6 and an internal friction angle () of 30˚, 34˚ and 40˚ representing loose, medium dense and dense sands . Depending on the angle of internal friction angle, the unit volume weight was chosen to be 16 kN/m3, 18 kN/m3 and 21 kN/m3 respectively. The footings on the surface (Df=0),. the slope height (H=2 m) and the footing width (B=2 m) were taken as constant value. In addition, an empirical correlation was developed to estimate the bearing capacity coefficient (Nγq). As the distance from the edge of the slope increases (i.e. as the b/B ratio increases), it can be observed that at a certain distance the bearing capacity of the footing approaches that of footings placed on horizontal level ground. Beyond this threshold, the bearing capacity remains constant regardless of further increases in the b/B ratio and the influence of the slope on the bearing capacity becomes negligible. Consequently, the footing behaves as if it were placed on horizontal level ground.