›› 2007, Vol. 28 ›› Issue (2): 315-320.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Analysis of anti-sliding stability in deep foundation of gravity dam based on partial coefficient

ZHOU Wei1, CHANG Xiao-lin1, XU Jian-qiang2   

  1. 1. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China; 2. East China Investigation and Design Institute, Hangzhou 310014, China
  • Received:2005-02-28 Online:2007-02-10 Published:2013-08-28

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Abstract: In light of the different variances of friction against shearing and cohesion, a new method based on partial coefficient is proposed to apply to gravity dam stability analysis. And the corresponding stability check formula is derived. This method is based on reliability idea, and the dam final stability coefficient dam of is defined by the strength reserve coefficient or over loading coefficient at limit equilibrium state. From gradual failure progress and failure mechanism of dam foundation, further discussion is performed that several key problems should be given attention and how to define safety coefficient criterion for gravity dam stability analysis against sliding in foundation with nonlinear FEM. The research results show that stress distribution on foundation surface for gravity dams and deformation characteristic of foundation rock had an important influence on safety coefficient. The computation results of actual projects show that, compared with the conventional rigid limited balance method, safety coefficient criterion of partial coefficient FEM tends to be on the low side.

Key words: partial coefficient, gravity dam, anti-sliding stability, FEM strength reserve coefficient

CLC Number: 

  • TU 641
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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