Coupled Heat and Moisture Flow in Unsaturated Soil for a Radioactive Waste Repository

2006 ◽  
Author(s):  
G. J. Chen ◽  
A. Ledesma
Keyword(s):  
Radioactive Waste ◽  
Unsaturated Soil ◽  
Moisture Flow ◽  
Radioactive Waste Repository ◽  
Waste Repository ◽  
Coupled Heat And Moisture ◽  
Heat And Moisture ◽  
Heat And Moisture Flow

Coupled Heat and Moisture Flow in Unsaturated Swelling Clay Barriers

1996 ◽  
Vol 19 (2) ◽  
pp. 155 ◽  
Author(s):  
DR Chaney ◽  
K Demars ◽  
AMO Mohamed ◽  
RN Yong ◽  
CI Onofrei ◽  
...  
Keyword(s):  
Swelling Clay ◽  
Moisture Flow ◽  
Coupled Heat And Moisture ◽  
Heat And Moisture ◽  
Clay Barriers ◽  
Heat And Moisture Flow

Two-Dimensional Model of Coupled Heat and Moisture Transport in Frost-Heaving Soils

1984 ◽  
Vol 106 (3) ◽  
pp. 336-343 ◽  
Author(s):  
G. L. Guymon ◽  
T. V. Hromadka ◽  
R. L. Berg
Keyword(s):  
Soil Column ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Frost Heaving ◽  
Moisture Flow ◽  
Freezing Soil ◽  
Two Dimensional Model ◽  
Coupled Heat And Moisture ◽  
Heat And Moisture ◽  
Heat And Moisture Flow

A two-dimensional model of coupled heat and moisture flow in frost-heaving soils is developed based upon well known equations of heat and moisture flow in soils. Numerical solution is by the nodal domain integration method which includes the integrated finite difference and the Galerkin finite element methods. Solution of the phase change process is approximated by an isothermal approach and phenomenological equations are assumed for processes occurring in freezing or thawing zones. The model has been verified against experimental one-dimensional freezing soil column data and experimental two-dimensional soil thawing tank data as well as two-dimensional soil seepage data. The model has been applied to several simple but useful field problems such as roadway embankment freezing and frost heaving.

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