MATHEMATICAL MODELING OF UNSATURATED FILTRATION IN SWELLING SOILS USING THE CAPILLARY-RISE PROBLEM AS AN EXAMPLE

A mathematical model of unsaturated fi ltration in swelling soils has been developed under the conditions of constancy of the entire volume of the medium. On the basis of the developed model, a solution to the problem on capillary rise of moisture in swelling soils has been obtained and characteristic features of the process have been established. A series of experiments on capillary rise of moisture in swelling and unswelling soils has been conducted. A comparison of solutions to the capillary-rise problem with experimental data has been made. Good agreement has been shown between the experimental data and the solutions to corresponding boundary-value problems.
   
Author:  N. E. Galiullina, M. G. Khramchenkov, and R. M. Usmanova
Keywords:  moisture transport, soil, basic hydrophysical characteristics of soil, fi ltration, capillary rise.
Page:  1519