ABSTRACT

The aim of the present study is – within an accuracy acceptable for practical design – to find the bearing capacity of a strip footing located near a slope, and also it is of interest to investigate, whether the traditional bearing capacity equation (1) is providing results, that are reasonably accurate. For that purpose a series of numerical upper-and lower-bound limit analyses using the software package OptumGEO (2012) of the bearing capacity of a strip footing located near a slope in cohesionless soil with varying surcharges have been performed. The analyses are carried out for friction angles 30, 35 and 40◦ and slope inclinations of 1:2 (β= 26.57◦), 1:3 (β= 18.44◦) and 1:4 (β= 14.04◦). The bearing capacity equation assumes, that the total bearing capacity can be found as the sum of the contributions from the selfweight of the soil and the surcharge and therefore also separate analysis have been done, making it possible to determine both gγ and gq and thus the dependency of the friction angle ϕ on the slope factors. The results are reported as tables and graphs suitable for practical design.