@proceedings {14602, title = {The application of limit analysis to the study of the basal failure of deep excavations in clay considering the spatial distribution of soil strength}, journal = {Proceedings of the 17 European Conference on Soil Mechanics and Geotechnical Engineering}, year = {2019}, address = {Reykjavik, Isl{\^a}ndia}, author = {L. A. Viana and A. Nunes Ant{\~a}o and M. Vicente da Silva and Guerra, N. M. C.} }