Triaxial Creep Behavior of Silted Soil in front of Dam Based on Fraction Derivatives Theory
Triaxial Creep Behavior of Silted Soil in front of Dam Based on Fraction Derivatives Theory
- New search for: Chang, Liucheng
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https://orcid.org/https://orcid.org/0000-0002-6794-7691
- New search for: Wang, Hongyu
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https://orcid.org/https://orcid.org/0000-0003-4230-8639
- New search for: Wang, Ya
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https://orcid.org/https://orcid.org/0000-0002-4764-3949
- New search for: Liu, Xiaohong
- Further information on Liu, Xiaohong:
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https://orcid.org/https://orcid.org/0000-0003-4944-1635
- New search for: Chang, Liucheng
- Further information on Chang, Liucheng:
-
https://orcid.org/https://orcid.org/0000-0002-6794-7691
- New search for: Wang, Hongyu
- Further information on Wang, Hongyu:
-
https://orcid.org/https://orcid.org/0000-0003-4230-8639
- New search for: Wang, Ya
- Further information on Wang, Ya:
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https://orcid.org/https://orcid.org/0000-0002-4764-3949
- New search for: Liu, Xiaohong
- Further information on Liu, Xiaohong:
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https://orcid.org/https://orcid.org/0000-0003-4944-1635
Increasing dam height on reservoir alluvium in front of dam is a kind of reinforcement construction method, which is widely used in the reinforcement projects of dangerous reservoirs in mountainous areas of southern Ningxia. The creep deformation of silted soil in front of dam significantly influences dam stability. To understand the creep properties of silted soil, the triaxial drained shear creep tests of silted soil sampled are conducted under different confining pressures (100 kPa, 200 kPa, and 300 kPa). Meanwhile, a new fractional-order creep constitutive model for silted soil is put forward by combining the improved fractional Maxwell model with the fractional Bingham model in series. The parameters are determined using the nonlinear least-squares method, and the proposed model is also used to fit the triaxial shear creep test results. All comparisons between predicted and measured values show that the developed creep model can characterize the mechanical characteristics of the whole creep process of silted soil well.
Document information
Triaxial Creep Behavior of Silted Soil in front of Dam Based on Fraction Derivatives Theory
KSCE J Civ Eng
KSCE Journal of Civil Engineering ; 26 , 9 ; 3863-3875
2022-09-01
13 pages
Article (Journal)
Electronic Resource
English
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