Xiaofei Li, Jiulong Lin, and Bo LiThis email address is being protected from spambots. You need JavaScript enabled to view it.
Intelligent Construction College, Shandong University of Aeronautics, Binzhou256600, China
Received: June 9, 2025 Accepted: October 16, 2025 Publication Date: January 22, 2026
Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.
To study the dynamic deformation characteristics of unsaturated silt in the Yellow River Delta, undrained cyclic loading tests were carried out on silt in the Yellow River Delta using the KTL dynamic triaxial apparatus. The effects of effective confining pressure σ3, consolidation ratio kc, and relative density Dr on the dynamic shear modulus ratio of unsaturated silt were analyzed. The results show that under the same dynamic shear strain, the dynamic shear modulus G of silt increases with the increase of effective confining pressure σ3, consolidation ratio kc, and relative density Dr. The influence of confining pressure on the maximum dynamic shear modulus can be described by both linear and nonlinear models, along with the parameter values of these models under different consolidation ratios. The H-D hyperbolic model was used to analyze the G/Gmax of the pulverized soil by regression analysis. Results show that the H-D hyperbolic model can well describe the relationship between G/Gmax and γc of unsaturated silt soil in the Yellow River Delta. A preliminary exploration of their developmental patterns was conducted.
Keywords: Yellow River Delta silt; dynamic shear modulus ratio; maximum dynamic shear modulus; dynamic triaxial test
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