Open AccessRheology Test and Finite Element Analysis: A Case Study of a Rockfill Dam in China
Author(s) -
Chao Deng,
Changjie Xu,
Xuemei Li,
Min Zheng
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/643/1/012074
Subject(s) - rheology , geotechnical engineering , geology , finite element method , settlement (finance) , slab , deflection (physics) , displacement (psychology) , deformation (meteorology) , engineering , structural engineering , materials science , psychology , oceanography , physics , optics , geophysics , world wide web , computer science , payment , composite material , psychotherapist
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.