Probabilistic analysis of critical safety margin of horizontally loaded shallow foundations
Probabilistic analysis of critical safety margin of horizontally loaded shallow foundations
There are several classical methods of varying degree of complexity that have been developed for calculating the bearing capacity of shallow foundations. Some of these methods consider geometric effects of the topography, depth of foundation, and load inclination among others. In many of the classical bearing capacity equations, the vertical load bearing capacity is assessed for a given horizontal load. However, there is no better compelling reason for choosing one specific point on the bearing capacity envelope over the other, except for its proximity to the actual load. This paper proposes a method of assesing the critical safety margin against general shear failure of shallow foundations loaded with inclined loads in the framework of the classical limit equlibrium based bearing capacitity formulations. Furthermore, the proposed method is employed in a probabilistic framework for accounting uncertainity in both foundation loading and strength parameters of the underlying soil. In this paper, the proposed method is implemented into the NTNU bearing capacity formulation. However, it can be easily adopted into other similar methods.
Anteneh Biru Tsegaye; Hilde Aas Nost; Vidar Gjelsvik
10th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE2023)
9. Shallow and deep foundations
https://doi.org/10.53243/NUMGE2023-211
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom