Journal article

Uniaxial Capacities of Skirted Circular Foundations in Clay

Dengfeng Fu, Christophe Gaudin, Yinghui Tian, Mark J Cassidy, Britta Bienen

Journal of Geotechnical and Geoenvironmental Engineering | ASCE-AMER SOC CIVIL ENGINEERS | Published : 2017

Abstract

Results of finite-element analyses calculating the undrained capacities of skirted circular foundations under uniaxial vertical, horizontal, and moment loading are presented. Parallel finite-element analyses using both the Tresca failure criterion and the modified cam clay (MCC) model are reported. The variations in capacity are presented as functions of embedment and soil-strength heterogeneity as a series of graphs. Closed-form formulas of uniaxial capacities are also provided. To account for the complexity in the results, a novel method of separating the contributions of soil above and beneath the skirt tip and for the constant and linearly varying components of the undrained shear-streng..

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Grants

Funding Acknowledgements

This work forms part of the activities of the Centre for Offshore Foundation Systems (COFS), which is supported by the Lloyd's Register Foundation as a Centre of Excellence and now forms one of the primary nodes of the Australian Research Council (ARC) Centre of Excellence for Geotechnical Science and Engineering. Lloyd's Register Foundation helps to protect life and property by supporting engineering-related education, public engagement, and the application of research.