CAPACITE PORTANTE DES FONDATIONS SUPERFICIELLES CIRCULAIRES.

This paper is concerned with determining the bearing capacity of axially loaded circular shallow foundations resting on a soil layer of limited or unlimited thickness with a cohesion linearly increasing with depth. It is a continuation of a study made previously by the authors dealing with the bearing capacity of strip footings under similar conditions. Within the frame of the theory of yield design and by means of the theory of axisymmetrical limit equilibria using the Haar-Karman hypothesis, the exact value of the theoretical bearing capacity was determined by a global calculation taking into account all the parameters of the problem simultaneously. In order to make the practical use of the results obtained easier, they are presented in the form of charts, by relating the bearing capacity of the circular footing to that of the strip footing with the same width under the same conditions by means of a shape factor, a function of the nondimensional terms of the problem.