Open AccessComparative study on settlement calculation of clay core rockfill dam by different constitutive models
Author(s) -
Zheyu Zhang,
Ding Chun-Mei
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/787/1/012174
Subject(s) - settlement (finance) , geotechnical engineering , constitutive equation , core (optical fiber) , yield surface , yield (engineering) , deformation (meteorology) , geology , structural engineering , engineering , materials science , finite element method , composite material , computer science , oceanography , world wide web , payment
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.