Upper and lower bound calculations of the bearing capacity of strip footings near slopes in cohesionless soil

摘要

The calculation of the bearing capacity of a strip foundation located on the edge of or near a slopernis commonly based on thewell known bearing capacity equation applying so called slope factors, and expressionsrnfor these factors have been proposed by amongst others Brinch Hansen and Vesic. These factors only take intornaccount the inclination of the slope, whereas other parameters, which may play a role, such as the distancernfrom the footing to the slope, the width of the footing and the strength of the soil are ignored. The present workrncomprises finite element based upper- and lower-bound calculations, using the software OptumGEO, consideringrnthe influence of these factors for vertical loads, and also the effect of a possible surcharge is investigated. Thernresults are given as design charts and tables suitable for practical design.