›› 2011, Vol. 32 ›› Issue (12): 3667-3671.

• Geotechnical Engineering • Previous Articles     Next Articles

Study of evaluation model of earthquake damage to earth dams

GUO En-dong1, ZHANG Li-na1, WANG Ya-dong2, WANG Zai-rong1, WANG Qiong1   

  1. 1. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China, 2. Survey Design and Research Institute of the Heilongjiang Water Utilities, Harbin 150080, China
  • Received:2010-03-30 Online:2011-12-10 Published:2011-12-13

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Abstract: In order to evaluate earthquake damage to earth dams quickly and accurately, more rational influence factors of the damage are chosen based on the empirical model. The least square method is used to re-analyze the earthquake damage data of earth dams. The regression coefficients of the influence factors of earthquake damage under different conditions are presented; and an improved empirical model to evaluate the earthquake damage to earth dams is set up. In the new model, irrational influence factors are eliminated; and the prediction accuracy of the regression model is improved with the correlation coefficient of 0.908 and the standard deviation of 0.459, which are better than the original model. By using both the improved and original model, 47 earth dams damaged in Wenchuan Earthquake are evaluated. The results are analyzed by comparing with the real seismic damages, preliminarily proving the improved model to be more satisfying.

Key words: earth dam, earthquake damage, improved empirical evaluation model, Wenchuan earthquake

CLC Number: 

  • P 315
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