Static and seismic bearing capacity of shallow strip foundations on slopes

Abstract

In this paper the static and seismic values of bearing capacity factors for shallow strip foundations adjacent to slopes have been evaluated using the method of characteristics, accounting, through the pseudo-static approach, for the effect of horizontal and vertical inertia forces arising in the soil and transmitted by the superstructure. Differently from most of the available studies, the effect of the inertia forces in the soil, due to the seismic wave propagation, and the effect of inertia forces acting in the superstructure, due to the structural seismic response, are dealt with independently. It was also demonstrated that the above-mentioned effects can be superimposed without significant error. Original empirical formulas and, in some cases, closed-form solutions, have been provided to calculate bearing capacity factors or suitable corrective coefficients which allow accounting for slope inclination and for horizontal and vertical seismic accelerations in the soil and in the superstructure. The proposed solutions, obtained assuming Hill's and Prandtl's failure mechanisms, have been checked against those obtained through finite-element analyses and compared with results already available in the literature.

Experimental and numerical study of weak soil layer effects on slope stability and bearing capacity of strip foundation resting on inclined layered soil mass

“…However, when relying on some parameters and engineering embankments, erosion watersheds, etc. The study of the bearing capacity of loaded slopes is vital because they are more prone to fail than other types of earth structures (Casablanca et al 2021;Ebid et al 2021;Shaunik and Singh 2020;Yang et al 2020).…”

Bearing capacity of shallow rigid strip foundations near slopes based on generalized log-spiral shear mechanism

“…However, the elastic wedge under the footing near a slope is commonly asymmetric 11 . Graham et al 12 and Casablanca et al 13 gave a solution to the ultimate bearing capacity adjacent to slopes based on the method of stress characteristics. In light of the yield design theory, de Buhan and Garnier 14 proposed a method to determine the bearing capacity of a rectangular shallow foundation near a slope.…”

Estimating the Ultimate Bearing Capacity for Strip Footing Near and within Slopes Using AI (GP, ANN, and EPR) Techniques

“…Building substructures are often constructed on or adjacent to slopes owing to the nonavailability of level ground, especially in hilly dominant topography encountered in highway vertical curves, embankments, erosion watersheds, etc. e study of the bearing capacity of loaded slopes is vital because they are more prone to fail than other types of earth structures [1][2][3][4][5]. Shallow foundations on slopes are mainly used for small-to medium-rise buildings.…”