Bearing capacity of single stone column in clay using finite element limit analysis

Author(s):  
Amir Hossein Shafiee ◽  
Alireza Eskandarinejad
1989 ◽  
Vol 26 (3) ◽  
pp. 369-374 ◽  
Author(s):  
T. Tamura ◽  
R. Y. S. Pak

This paper describes the formulation of a finite element method by which a limit analysis of a rigid–plastic medium with discontinuities can be performed. The Drucker–Prager criterion is adopted to describe the yielding of the medium, while the Mohr–Coulomb law is used to model the interface of the discontinuous velocity fields. Both associated and nonassociated flow rules are considered in the constitutive characterization. Results are presented to illustrate the influence of discontinuities on the bearing capacity of a surface foundation. Key words: bearing capacity, constitutive law, dilatancy, discontinuity, limit, plasticity, finite element analysis.


2019 ◽  
Vol 110 ◽  
pp. 94-113 ◽  
Author(s):  
Ramin Vali ◽  
Majid Beygi ◽  
Mohammad Saberian ◽  
Jie Li

2019 ◽  
Vol 2019 ◽  
pp. 1-16
Author(s):  
Weihua Luo ◽  
Minghua Zhao ◽  
Yao Xiao ◽  
Rui Zhang ◽  
Wenzhe Peng

By employing adaptive finite element limit analysis (AFELA), the seismic bearing capacity of strip footing on cohesive soil slopes are investigated. To consider the earthquake effects, the pseudostatic method is used. The upper and lower bounds for the seismic bearing capacity factor (Nce) are calculated, and the relative errors between them are found within 3% or better by adopting the adaptive mesh strategy. Based on the obtained results, design tables and charts are provided to facilitate engineers use, and the effects of footing position, undrained shear strength, slope angle, slope height, and pseudostatic acceleration coefficient are studied in detail. The collapse mechanisms are also discussed, including overall slope failure and foundation failure.


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