›› 2007, Vol. 28 ›› Issue (S1): 575-580.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on action of seepage pressure on gravity dam in FEM

FAN Shu-li, CHEN Jian-yun, LIN Gao   

  1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China
  • Received:2007-05-28 Online:2007-10-25 Published:2014-03-28

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Abstract: Aiming at how to simulate the uplift pressure of the interface between dam and foundation in the stress and stability analysis of dam with finite element method(FEM), different numerical simulation methods of imposing uplift pressure are analyzed. By comparing the influence on the deformation, stress distribution and stability of dam foundation rock, their applied range and limitation are indicated respectively for specific application purpose. At the same time, the influence of dam seepage fields on the dam deformation is discussed based on spatial seepage flow theory. The research shows that irrational results might be obtained when uplift pressure is used to act on one side of element of the interface between dam and foundation as face loads, and the numerical result calculated by using the buoyancy unit weight of concrete under the saturated surface can agree well with that calculated by the seepage-body-force. The research also indicates that the curtain and drainage hole have a considerable influence on the stress distribution and stability of concrete gravity dam.

Key words: gravity dam, seepage pressure, uplift pressure, finite element method, stability analysis

CLC Number: 

  • TV 642
  • 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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