Predicting Unfrozen Water Contents in Frozen Soils

1966 ◽  
Vol 3 (2) ◽  
pp. 53-60 ◽  
Author(s):  
Howard B Dillon ◽  
O B Andersland
Keyword(s):  
Water Content ◽  
Freezing Point ◽  
Soil Mechanics ◽  
Frozen Soil ◽  
Unfrozen Water ◽  
Silty Clay ◽  
Frozen Soils ◽  
Unfrozen Water Content ◽  
Experimental Values ◽  
Water Contents

A relationship between temperature and certain soil properties including specific surface area, activity ratio, and the expandable clay lattice, is presented for predicting the unfrozen water content of frozen soils. Data on experimental calorimetric determinations for ice content of two frozen clays and a frozen silty clay are given. Predicted unfrozen water contents are compared with experimental values for eleven soils with good agreement in all cases. Temperatures close to and above the freezing point depression of the soil are excluded. Knowledge of the unfrozen water content in frozen soils permits a more realistic approach to a variety of problems in frozen soil mechanics.

A method for calculating unfrozen water content of silty clay with consideration of freezing point

2018 ◽  
Vol 161 ◽  
pp. 474-481 ◽  
Author(s):  
Mingtang Chai ◽  
Jianming Zhang ◽  
Hu Zhang ◽  
Yanhu Mu ◽  
Gaochen Sun ◽  
...  
Keyword(s):  
Water Content ◽  
Freezing Point ◽  
Unfrozen Water ◽  
Silty Clay ◽  
Unfrozen Water Content

Prediction of salt influence on unfrozen water content in frozen soils

1979 ◽  
Vol 13 (1-4) ◽  
pp. 137-155 ◽  
Author(s):  
R.N. Yong ◽  
C.H. Cheung ◽  
D.E. Sheeran
Keyword(s):  
Water Content ◽  
Unfrozen Water ◽  
Frozen Soils ◽  
Unfrozen Water Content

scholarly journals Modeling the Unfrozen Water Content of Frozen Soil Based on the Absorption Effects of Clay Surfaces

2020 ◽  
Vol 56 (12) ◽  
Author(s):  
Xiao Jin ◽  
Wen Yang ◽  
Xiaoqing Gao ◽  
Jian‐Qi Zhao ◽  
Zhenchao Li ◽  
...  
Keyword(s):  
Water Content ◽  
Frozen Soil ◽  
Unfrozen Water ◽  
Unfrozen Water Content

The measurement of unfrozen water content by time domain reflectometry: results from laboratory tests

1981 ◽  
Vol 18 (1) ◽  
pp. 131-144 ◽  
Author(s):  
D. E. Patterson ◽  
M. W. Smith
Keyword(s):  
Dielectric Property ◽  
Water Content ◽  
Time Domain ◽  
Empirical Relationship ◽  
Time Domain Reflectometry ◽  
Unfrozen Water ◽  
Published Data ◽  
Frozen Soils ◽  
Unfrozen Water Content ◽  
Property Versus

A new technique for determining the volumetric unfrozen water content of frozen soils is reported, which uses time domain reflectometry (TDR) to measure the dielectric property. Using precise temperature control, the technique, which was developed previously by others for unfrozen soils, has been successfully applied to the measurement of unfrozen water contents of frozen soils. Curves of the dielectric property versus temperature show a close similarity to unfrozen water content curves, for a variety of soils. Results from experiments on ice–water mixtures and from combined TDR–dilatometry experiments on frozen soils suggest that an empirical relationship obtained by Topp, Davis, and Annan may be applicable to frozen media as well as unfrozen soils. Using this relationship, dielectric values were converted to unfrozen water content values, and the results agreed very closely with published data for similar soils, determined by other methods. For silt loams, agreement is typically within ± 1½% in volumetric water content, and for clays ± 3 %. Some of this difference is undoubtedly due to soil sample variations.

Strength of frozen saline soils

1995 ◽  
Vol 32 (2) ◽  
pp. 336-354 ◽  
Author(s):  
E.G. Hivon ◽  
D.C. Sego
Keyword(s):  
Water Content ◽  
Fine Particles ◽  
Constant Strain Rate ◽  
Significant Loss ◽  
Time Domain Reflectometry ◽  
Frozen Soil ◽  
Unfrozen Water ◽  
Strain Behavior ◽  
Unfrozen Water Content ◽  
The Time Domain

This paper summarizes an extensive laboratory program undertaken to study the influence of soil type, temperature, and salinity on the strength of three different frozen soils under conditions of unconfined constant strain rate tests. Since the effects of temperature and salinity can be unified by studying the variation of unfrozen water content, measurements of unfrozen water at different temperatures were carried out using the time-domain reflectometry (TDR) method. The stress–strain behavior is influenced by the presence of fine particles in the soil, and an increase in temperature and salinity (unfrozen water content) causes a significant loss of strength. For each soil tested, a predictive model of its strength in terms of salinity and temperature (unfrozen water content) is presented. Key words : frozen soil, saline, unfrozen water, strength.

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