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Evaluation of Marine Clays’ Strain Rate Dependency During the Unloading Process
Consolidation characteristics interpreted with the isotache concept have been studied by many researchers. However, the dependency of strain rate on the unloading behavior of marine clays remains unclear. In this study, the authors conducted Constant Rate of Strain (CRS) consolidation test and Incremental Loading Oedometer Test and evaluated a ratio (Ccα/Cc and Csα/Cs) to compare the strain rate dependency between loading and unloading. The ratio Csα/Cs exhibited an increasing trend with overconsolidation ratio (\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$OCR = p_{\max }^{\prime } /p^{\prime }$$\end{document}). Moreover, the Incremental Loading Oedometer Test revealed an approximately linear relationship between the unloading strain rate (in log scale) and the elapsed time (in log scale). These findings contribute to a better understanding of the behavior of marine clays during consolidation and unloading processes.
Evaluation of Marine Clays’ Strain Rate Dependency During the Unloading Process
Consolidation characteristics interpreted with the isotache concept have been studied by many researchers. However, the dependency of strain rate on the unloading behavior of marine clays remains unclear. In this study, the authors conducted Constant Rate of Strain (CRS) consolidation test and Incremental Loading Oedometer Test and evaluated a ratio (Ccα/Cc and Csα/Cs) to compare the strain rate dependency between loading and unloading. The ratio Csα/Cs exhibited an increasing trend with overconsolidation ratio (\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$OCR = p_{\max }^{\prime } /p^{\prime }$$\end{document}). Moreover, the Incremental Loading Oedometer Test revealed an approximately linear relationship between the unloading strain rate (in log scale) and the elapsed time (in log scale). These findings contribute to a better understanding of the behavior of marine clays during consolidation and unloading processes.
Evaluation of Marine Clays’ Strain Rate Dependency During the Unloading Process
Lecture Notes in Civil Engineering
Duc Long, Phung (editor) / Dung, Nguyen Tien (editor) / Fan, Zheng (author) / Watabe, Yoichi (author)
International Conference on Geotechnics for Sustainable Infrastructure Development ; 2023 ; Hanoi, Vietnam
Proceedings of the 5th International Conference on Geotechnics for Sustainable Infrastructure Development ; Chapter: 165 ; 2401-2412
2024-07-11
12 pages
Article/Chapter (Book)
Electronic Resource
English
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Unloading behavior of clays measured by CRS test
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