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| RESEARCH ON MECHANISM AND NUMERICAL SIMULATION METHOD OF SEEPAGE FAILURE OF DOUBLE-LAYER DIKE FOUNDATION |
| ZHOU Hongxing，CAO Hong |
(State Key Laboratory of Subtropical Building Science，South China University of Technology，
Guangzhou，Guangdong 510641，China) |
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Abstract This article summarized and analyzed the results of sand box test，simulated the seepage failure of the double-layer dike foundation. These experiments are focus on the affection of the different characteristics of simulated cover-materials on the seepage failure. Base on above analyzing，two criterions are derived. One is the stress strength，considering the seepage force. The other is the limited balance of the rotational moments of soil particle. Meanwhile according to the observed phenomena of experiments，the seepage failure is simulated by the two-dimensional axisymmetric finite element method(FEM). Compared the results between the experiment and numerical simulation，the above research method and two criterions on the seepage failure are reasonable，feasible.
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Received: 18 March 2011
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2011, Vol. 30 
