Comparative study on settlement calculation of clay core rockfill dam by different constitutive models

Abstract The analysis and calculation of the settlement of the clay core rockfill dam is decided by the constitutive relation of the dam material. In this paper, the settlement of the clay core rockfill dam of Luding Hydropower Station under different working conditions is analyzed and calculated by...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 787; no. 1; pp. 12174 - 12180
Main Authors Zhang, Zhe-Yu, Ding, Chun-Mei
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.06.2021
Subjects
Clay
Comparative studies
Constitutive models
Constitutive relationships
Elastic deformation
Hydroelectric power
Hydroelectric power stations
Mathematical models
Parameter sensitivity
Poisson's ratio
Rockfill dams
Working conditions
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Summary:Abstract The analysis and calculation of the settlement of the clay core rockfill dam is decided by the constitutive relation of the dam material. In this paper, the settlement of the clay core rockfill dam of Luding Hydropower Station under different working conditions is analyzed and calculated by using Duncan E-v and double yield surface elastic-plastic model. E-v model is quite sensitive to Poisson’s ratio, and the small changes of parameters G, D and F may lead to great differences in the deformation calculation results of the model, while the elastic-plastic model with double yield surface is not very sensitive, and its settlement calculation results under different working conditions are relatively stable.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/787/1/012174