Abstract
Thaw consolidation of ice-rich permafrost is a typical problem in cold regions engineering. This paper proposes a three dimensional analysis of large strain thaw consolidation for post-thawed zone of permafrost, which is defined by a moving thawing boundary problem with phase changes. The theory is implemented in a numerical code and the numerical results are compared with thaw consolidation tests. For problems with low water contents, the small and large strain methods provide virtually the same results. For problems with high water contents, however, the large strain theory shows a much better performance.
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Acknowledgments
This work was supported in part by the 100 Young Talents project of the Chinese Academy of Sciences granted to Dr. Jilin Qi and the National Natural Science Foundation of China (No. 41172253 and 40871039). The authors thank Mr. Geoffrey Gay for his kind help in revising the paper.
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Yao, X., Qi, J. & Wu, W. Three dimensional analysis of large strain thaw consolidation in permafrost. Acta Geotech. 7, 193–202 (2012). https://doi.org/10.1007/s11440-012-0162-y
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DOI: https://doi.org/10.1007/s11440-012-0162-y