Displacement-Based Back-Analysis of the Model Parameters of the Nuozhadu High Earth-Rockfill Dam
Joint Authors
Zhang, Bing-yin
Wu, Yongkang
Zhang, Zongliang
Yu, Yu-zhen
Yuan, Hui-na
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-08
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
The parameters of the constitutive model, the creep model, and the wetting model of materials of the Nuozhadu high earth-rockfill dam were back-analyzed together based on field monitoring displacement data by employing an intelligent back-analysis method.
In this method, an artificial neural network is used as a substitute for time-consuming finite element analysis, and an evolutionary algorithm is applied for both network training and parameter optimization.
To avoid simultaneous back-analysis of many parameters, the model parameters of the three main dam materials are decoupled and back-analyzed separately in a particular order.
Displacement back-analyses were performed at different stages of the construction period, with and without considering the creep and wetting deformations.
Good agreement between the numerical results and the monitoring data was obtained for most observation points, which implies that the back-analysis method and decoupling method are effective for solving complex problems with multiple models and parameters.
The comparison of calculation results based on different sets of back-analyzed model parameters indicates the necessity of taking the effects of creep and wetting into consideration in the numerical analyses of high earth-rockfill dams.
With the resulting model parameters, the stress and deformation distributions at completion are predicted and analyzed.
American Psychological Association (APA)
Wu, Yongkang& Yuan, Hui-na& Zhang, Bing-yin& Zhang, Zongliang& Yu, Yu-zhen. 2014. Displacement-Based Back-Analysis of the Model Parameters of the Nuozhadu High Earth-Rockfill Dam. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1049104
Modern Language Association (MLA)
Wu, Yongkang…[et al.]. Displacement-Based Back-Analysis of the Model Parameters of the Nuozhadu High Earth-Rockfill Dam. The Scientific World Journal No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1049104
American Medical Association (AMA)
Wu, Yongkang& Yuan, Hui-na& Zhang, Bing-yin& Zhang, Zongliang& Yu, Yu-zhen. Displacement-Based Back-Analysis of the Model Parameters of the Nuozhadu High Earth-Rockfill Dam. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1049104
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049104