THE UPPER-BOUND SOLUTION FOR BEARING CAPACITY FACTOR OF BY EMPLOYING THE EQUIVALENCE OF LIMIT ANALYSIS AND LIMIT EQUILIBRIUM METHOD

Yang Yang; Lu Kunlin; Zhu Dayong; Wu Ping

doi:10.13204/j.gyjz201302015

Volume 43 Issue 2

Dec. 2014

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Yang Yang, Lu Kunlin, Zhu Dayong, Wu Ping. THE UPPER-BOUND SOLUTION FOR BEARING CAPACITY FACTOR OF BY EMPLOYING THE EQUIVALENCE OF LIMIT ANALYSIS AND LIMIT EQUILIBRIUM METHOD[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(2): 72-77,71. doi: 10.13204/j.gyjz201302015

Citation:

Yang Yang, Lu Kunlin, Zhu Dayong, Wu Ping. THE UPPER-BOUND SOLUTION FOR BEARING CAPACITY FACTOR OF BY EMPLOYING THE EQUIVALENCE OF LIMIT ANALYSIS AND LIMIT EQUILIBRIUM METHOD[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(2): 72-77,71. doi: 10.13204/j.gyjz201302015

Citation:

Yang Yang, Lu Kunlin, Zhu Dayong, Wu Ping. THE UPPER-BOUND SOLUTION FOR BEARING CAPACITY FACTOR OF BY EMPLOYING THE EQUIVALENCE OF LIMIT ANALYSIS AND LIMIT EQUILIBRIUM METHOD[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(2): 72-77,71. doi: 10.13204/j.gyjz201302015

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THE UPPER-BOUND SOLUTION FOR BEARING CAPACITY FACTOR OF BY EMPLOYING THE EQUIVALENCE OF LIMIT ANALYSIS AND LIMIT EQUILIBRIUM METHOD

doi: 10.13204/j.gyjz201302015

1.
School of Civil Engineering,Hefei University of Technology,Hefei 230009,China

Received Date: 2012-06-03
Publish Date: 2013-02-20

Abstract

Abstract

An approach for evaluating the upper-bound for bearing capacity factor N was presented.The equivalence of limit analysis and limit equilibrium method was analyzed,and then a kinematical admissible failure mechanism,which was composed of a sequence of rigid triangles,was considered in the framework of limit equilibrium method.The recursion formula of inter-slice force was deduced according to the force equilibrium conditions of slice,and optimal bottom inclination of each triangle also was obtained by employing the principle of maximum thrust force.Therefore,the critical failure mechanism and corresponding N value were obtained.Then,the influence of inclined ground surface on N value was discussed.These solutions,presented in the form of graphs,were compared against existing semi-empirical expressions and numerical solutions.Finally,approximate analytical expressions for N and (correction factor of inclined ground surface) were suggested.The present method,which was of simple principle and could be readily implemented into computer software,could solve a lower N value than other's the upper-bound solutions.The study results could be used in theoretical analysis of bearing capacity and provideed some beneficial references for further research on N.
- bearing capacity,
- bearing capacity factor,
- limit analysis,
- limit equilibrium,
- inclined ground surface

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References(41)

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