›› 2009, Vol. 30 ›› Issue (12): 3733-3738.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Studies of application of Drucker-Prager yield criteria to stability analysis

WANG Xian-jun1, 2, CHEN Ming-xiang1, CHANG Xiao-lin3, ZHOU Wei3, YUNA Zi-hou1   

  1. 1. School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, China; 2. College of Civil and Hydropower Engineering, China Three Gorges University, Yichang 443002, China; 3.WuHan University State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan 430072,China
  • Received:2009-04-07 Online:2009-12-10 Published:2010-01-18

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Abstract:

The Drucker-Prager yield criteria are widely used in geotechnical engineering as modified models of Mohr-Coulomb criterion. Great differences may be made between results with different Drucker-Prager yield criteria. It is important to select a proper Drucker-Prager yield criterion in geotechnical engineering analysis. The range of Lode angle of Drucker-Prager yield criterion is too limit to reflect more stressed conditions and should be enlarged from －30°to 30°is pointed out. Studies of section how to select a proper Drucker-Prager yield criterion are made based on stability analyses of a certain slope and that of dam #12 foundation of the Xiangjiaba Project. Studies show that more reasonable results can be achieved if the Lode angle of Drucker-Prager yield criterion selected can reflect the stressed condition of important parts which play important roles in maintaining stability of dam foundation or slope; and it is necessary to enlarge the range of Lode angle of Drucker-Prager yield criterion.

Key words: Drucker-Prager yield criteria, Mohr-Coulomb criterion, Lode angle, stability analysis

CLC Number: 

  • O 343.2
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