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Nonlinear Numerical Analysis of Thaw Consolidation of Ice Rich Frozen Soil
Abstract A linear interpolation function fitting the nonlinear relationship between void ratio and compression modulus was proposed and corresponding strategy guaranteeing calculation accuracy and efficiency was developed for the nonlinear numerical analysis of 3-D large strain thaw consolidation of ice rich frozen soil. It was verified by a series of ice rich thaw consolidation tests that, with the proposed numerical implementation strategy, the calculated results match well with the tested results of pore water pressure and thaw displacement. Further analysis on the different stress-strain relationships shown that the prediction values and accuracies on pore water pressure and thaw displacement of nonlinear relationship is higher than that of linear relationship. This also leads to higher prediction accuracy on thaw consolidation degree and pore water pressure at thawing front of nonlinear relationship.
Nonlinear Numerical Analysis of Thaw Consolidation of Ice Rich Frozen Soil
Abstract A linear interpolation function fitting the nonlinear relationship between void ratio and compression modulus was proposed and corresponding strategy guaranteeing calculation accuracy and efficiency was developed for the nonlinear numerical analysis of 3-D large strain thaw consolidation of ice rich frozen soil. It was verified by a series of ice rich thaw consolidation tests that, with the proposed numerical implementation strategy, the calculated results match well with the tested results of pore water pressure and thaw displacement. Further analysis on the different stress-strain relationships shown that the prediction values and accuracies on pore water pressure and thaw displacement of nonlinear relationship is higher than that of linear relationship. This also leads to higher prediction accuracy on thaw consolidation degree and pore water pressure at thawing front of nonlinear relationship.
Nonlinear Numerical Analysis of Thaw Consolidation of Ice Rich Frozen Soil
Yao, Xiaoliang (author) / Dang, Boxiang (author) / Qi, Jilin (author)
2018-01-01
5 pages
Article/Chapter (Book)
Electronic Resource
English
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