Analysis of salt and water movement in freezing unsaturated soil

M. MIZOGUCHI, Mie Univ., Mie 514, Japan 

It is important to predict the influence of solutes on soil freezing 
phenomena. This study gives a simulation model of the simultaneous 
transport of water,  heat and salt in freezing soils. A numerical 
analysis of salt and water movement in freezing unsaturated soil was 
made by using the finite difference method. The simulated results of 
water content,  temperature and salinity were compared with the observed 
results. The influence of initial water content, surface boundary 
temperature and initial salinity on freezing rate and water movement 
were treated by several simulations. These simulations predicted that 
the increase of salinity in soils reduces both the freezing rate and 
the amount of water movement. 

M. Mizoguchi, (81)592-31-9574, mizo@bio.mie-u.ac.jp