Ultimate Capacity of Deep Foundation by a Rigid-Plastic Analysis

by Ronald Y. S. Pak, Univ of Colorado, United States,
Takeshi Tamura, Univ of Colorado, United States,

Document Type: Proceeding Paper

Part of: Foundation Engineering: Current Principles and Practices


This paper is concerned with the determination of the axial ultimate capacity of a rigid pier on the basis of the theory of perfect plasticity. As an application of the upper bound theorem on plastic collapse, a computational method is developed for the calculation of limit loads for this class of axisymmetric problems. Both the Von Mises as well as the Drucker-Prager models are considered in this investigation. Typical results are presented on the evaluation of the base capacity and lateral side pressure of the foundation.

Subject Headings: Deep foundations | Plasticity | Soil strength | Shear strength | Shear resistance | Mathematical models | Load bearing capacity

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