Journal ArticleDOI
Influence of cooling rate on the temperature of ice lens formation in clayey silts
TLDR
In this paper, the authors used the computer-controlled "ramped-freezing" mode associated with the X-ray photography technique developed at the National Research Council of Canada by Penner was used to study the variation of the maximum and minimum temperatures at the face of a growing ice lens during transient freezing in two different clayey silts.About:
This article is published in Cold Regions Science and Technology.The article was published on 1989-07-01. It has received 26 citations till now. The article focuses on the topics: Ice lens.read more
Citations
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Journal ArticleDOI
A model for water transport and ice lensing in freezing soils
J.-M. Konrad,C. Duquennoi +1 more
TL;DR: In this paper, a one-dimensional model for water transport and ice lensing in incompressible saturated and solute-free soil specimens is proposed for the simulation of small-scale frost heave tests in the laboratory.
Journal ArticleDOI
Assessing frost susceptibility of soils using PCHeave
TL;DR: In this article, a simple frost heave model is presented, where the formation of ice lenses is governed by the Clapeyron equation of thermodynamics and relies on the existence of a frozen fringe between the frozen and unfrozen zones.
Journal ArticleDOI
Estimation of the segregation potential of fine- grained soils using the frost heave response of two reference soils
TL;DR: In this paper, the frost heave response of quarry fines from several locations in the Province of Quebec was studied in the laboratory using one-dimensional step-freezing tests with free access to water.
Journal ArticleDOI
Study on the influence of water flow on temperature around freeze pipes and its distribution optimization during artificial ground freezing
TL;DR: In this article, the influence of water flow on freezing process is simulated by a developed coupled hydro-thermal model considering water/ice phase transition and the positions of freeze pipes around circular tunnel are optimized through combining this model with Nelder-Mead simplex method based on COMSOL multiphysics platform.
Journal ArticleDOI
Pore-Water Pressures in Freezing and Thawing Fine-Grained Soils
TL;DR: In this article, laboratory freezing tests were performed on laterally confined samples of lightly overconsolidated fine-grained soil exposed to one-dimensional freezing at a constant temperature gradient.
References
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Journal ArticleDOI
A mechanistic theory of ice lens formation in fine-grained soils
TL;DR: In this article, a freezing soil can be characterized by two parameters, the segregation-freezing temperature Ts and the overall permeability of the frozen fringe during unsteady heat flow.
Journal ArticleDOI
The segregation potential of a freezing soil
TL;DR: In this article, it has been shown that when a soil sample freezes in a one-dimensional manner under different cold-side step temperatures but the same warm-side temperature, at the formation of th...
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Frost heave prediction of chilled pipelines buried in unfrozen soils
TL;DR: In this article, a procedure for calculating the amount of heave under a chilled gas pipeline is presented based on a finite-difference formulation of the heat and mass transfer in saturated soils.
Journal ArticleDOI
Prediction of frost heave in the laboratory during transient freezing
J.-M. Konrad,N. R. Morgenstern +1 more
TL;DR: In this article, it was shown that the ratio of the water intake velocity to the temperature gradient across the frozen fringe, called the segregation potentness, is close to steady-state conditions.
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Aspects of ice lens growth in soils
TL;DR: In this article, the growth characteristics of individual ice lenses in natural soils have been studied in the laboratory using ramped temperature control, and the growth rate rises rapidly after ice lens initiation and this is followed by a protracted period of decreasing growth.