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《Journal of Hydroelectric Engineering》 2009-03
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Back analysis on deformation of Shuibuya CFRD

WANG Pengxu,SONG Wenjing(State Key Laboratory of Hydroscience and Hydraulic Engineering,Tsinghua University,Beijing 100084)  
The direct back-analysis method combined with the neural networks and genetic algorithm is adopted to compute Tsinghua K-G model parameters of Shuibuya concrete face rockfill dam(CFRD) according to the measured settlement in Dec.2006. Tsinghua K-G model is used for 3-D FEM analysis to predict deformation and stresses when the water level reaches the normal high water level of 400m. The maximum computed settlement of rockfill dam is approximately 2.39m,which is only 1% of the dam height. The max normal displacement of face slab is computed about 457mm,and the result of stress analysis indicates that the face slab is compressed in central and otherwise around abutment. The displacements of vertical and peripheral joints are less than 5 cm within the capability of waterstop strips.
【CateGory Index】: TV641.43
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