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| MECHANISM OF SEEPAGE EROSION AND FINITE ELEMENT CALCULATION OF EARTH DAM |
| ZHANG Xingsheng1，SONG Lijuan1，DONG Jinyu1，YU Huaichang1，HUANG Zhiquan1，WANG Jianxiu2，
WONG Henry3，WANG Jiangfeng1，YANG Yongxiang1 |
| (1. Institute of Resources and Environment，North China Institute of Water Resources and Electric Power，Zhengzhou，Henan 450011，China；2. Department of Geotechnical Engineering，Tongji University，Shanghai 200092，China；3. Département Génie Civil et Bâtiment，Université de Lyon，Ecole Nationale des Travaux Publics de l′Etat，Vaulx-en-Velin 69120，France) |
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Abstract The formation and the influencing factors of seepage erosion in soil and the relationship between the damage to the soil structural strength and the erosion ratio were systematically analyzed. The relationship of the constituents of soil grains，the constitutive equation and governing equations of seepage erosion in the earth structure were established. A relationship of structural strength damage of soil due to seepage erosion was presented. The partial differential equations for the coupled multiple fields based on the governing equations were solved with the finite element method. A core dam was analyzed. The results of the numerical analysis validated the governing equations and the relationship between the damage elastic modulus and erosion ratio.
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2015, Vol. 34 
