Rheology Test and Finite Element Analysis: A Case Study of a Rockfill Dam in China

Rheology often occurs in the dam rockfill deformation. In this paper, we carried out a large-scale triaxial rheological test for the tuff rockfill materials of a concrete faced rockfill dam in China, and then obtained the parameters of the seven parameter rheology model. Finally, we analyzed the dam...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 643; no. 1; pp. 12074 - 12079
Main Authors Deng, Chengfa, Xu, Chang, Li, Xuemei, Zheng, Minsheng
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2021
Subjects
Concrete dams
Finite element method
Mathematical models
Model testing
Parameters
Rheological properties
Rheology
Rockfill dams
Three dimensional models
Tuff
China
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Summary:Rheology often occurs in the dam rockfill deformation. In this paper, we carried out a large-scale triaxial rheological test for the tuff rockfill materials of a concrete faced rockfill dam in China, and then obtained the parameters of the seven parameter rheology model. Finally, we analyzed the dam rheology using the three-dimensional finite element model. The results show that the dam settlement, horizontal displacement, face deflection and the displacement of the joints around the face slab are all obviously increased when considering the rheological behavior of the rockfill. We find that the calculated settlement of the dam body is in good agreement with the filed measured value when the dam is completed, and the maximum settlement during the impoundment period is within the normal range.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/643/1/012074