NON-SATURATED SOIL CONSOLIDATION MODELLING IN PRESENCE OF IMMISCIBLE POLLUTANTS

JAVIER L. MROGINSKI; H. ARIEL DI RADO; PABLO A. BENEYTO; ARMANDO M. AWRUCH

Foz do Iguaçu, Paraná, Brazil

Congreso; 11th Pan-American Congress of Applied Mechanics - PACAM XI; 2010

American Society of Civil Engineers (ASCE)

The main scope of this work is to carry out a mathematical framework and its corresponding finite element discretization for the partially saturated soil consolidation modelling in presence of an immiscible pollutant. A multiphase system with the interstitial voids in the grain matrix filled with water (liquid phase), water vapour and dry air (gas phase) and with pollutant substances, is assumed. The scopes of the mathematical model addressed in previous works of this author, were broaden regarding the presence of an additional phase and considering the pollutant saturation suction coupling effects. The ensuing mathematical model involves equations of momentum balance, energy balance and mass balance of the whole multiphase system. Encouraging outcomes were achieved in several different examples.