Ultimate Bearing Capacity Based on Unified Strength Theory

Abstract:

In the ultimate bearing capacity formulas, the factor N_γ has not been given a definite expression, so the calculation diagrams are not serious and the hypothesis can’t match the reality. Most of the ultimate bearing capacity factors are received from the results of Prandtl theory, but the theoretic models they used are not the same. And most of the ultimate bearing capacity theories are based on Mohr-Coulomb theory, the effects of intermediate principle stress are ignored. To solve these problems, according to ultimate balance theory and unified strength theory, the analytical formulas of ultimate bearing capacity and N_γ are received when foundation is completely smooth. The results show that the ultimate bearing capacity will increase when considering the effects of intermediate principle stress and the formulas from practical experiences can make the ultimate bearing capacity unsteady.

• Periodical: Applied Mechanics and Materials (Volumes 368-370)
• Pages: 1838-1842
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.368-370.1838
• Online since: August 2013
• Authors: Xuan Zhou, Guo Jian Shao, Feng Hu
• Keywords: Analytical Formulas, Ultimate Bearing Capacity, Unified Strength Theory

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