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A constitutive model of saturated soils for frost heave simulations
AbstractIt is argued that the volume increase of frost-susceptible soils due to ice growth during freezing can be described by a phenomenological model without resorting to the micromechanical processes causing the ice growth. Judging from solid mechanics' experience, such model may prove to be more accurate in predictions of frost heave than models based on micromechanical processes (single ice lens formation). A particular model based on a porosity rate function is described. This approach, suggested earlier by Blanchard and Frémond (1985), is extended to include more factors affecting ice growth during freezing of frost susceptible soils. Results of simulations of a one-dimensional freezing process are shown to illustrate the main features of the model and its potential applicability. Although a quantitative verification of the model was not possible, as sufficient data from lab tests were not available to calibrate it, the numerical results indicate a very realistic response of samples to simulated freezing processes.
A constitutive model of saturated soils for frost heave simulations
AbstractIt is argued that the volume increase of frost-susceptible soils due to ice growth during freezing can be described by a phenomenological model without resorting to the micromechanical processes causing the ice growth. Judging from solid mechanics' experience, such model may prove to be more accurate in predictions of frost heave than models based on micromechanical processes (single ice lens formation). A particular model based on a porosity rate function is described. This approach, suggested earlier by Blanchard and Frémond (1985), is extended to include more factors affecting ice growth during freezing of frost susceptible soils. Results of simulations of a one-dimensional freezing process are shown to illustrate the main features of the model and its potential applicability. Although a quantitative verification of the model was not possible, as sufficient data from lab tests were not available to calibrate it, the numerical results indicate a very realistic response of samples to simulated freezing processes.
A constitutive model of saturated soils for frost heave simulations
Michalowski, Radoslaw L. (author)
Cold Regions, Science and Technology ; 22 ; 47-63
1993-02-15
17 pages
Article (Journal)
Electronic Resource
English
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