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CONVERSION OF THE MODIFIED KOVCS MODEL PARAMETERS TO THE BROOKS & COREY AND VAN
 

Summary: CONVERSION OF THE MODIFIED KOVÁCS MODEL
PARAMETERS TO THE BROOKS & COREY AND VAN
GENUCHTEN MODEL PARAMETERS FOR
GRANULAR SOILS
Abdelkabir Maqsoud, Bruno Bussière and Mamert Mbonimpa
Department of applied sciences ­ Industrial NSERC Polytechnique-UQAT Chair
on Environment and Mine Wastes Management, UQAT, Rouyn-Noranda,
Québec, Canada
Michel Aubertin
Department of Civil, Geological, and Mining Engineering, Industiral NSERC
Polytechnique-UQAT Chair on Environment and Mine Wastes Management,
École Polytechnique, Montréal, Québec, Canada
ABSTRACT
The modified Kovács (MK) model can be considered as one of the most versatile predictive models available to estimate
the unsaturated hydraulic functions. The MK model relies on basic geotechnical properties to obtain the water retention
curve (WRC), which can then be used to define the relative permeability function. In addition, the model can also take
into consideration hysteresis effects and volume changes. However, the MK model has not yet been introduced in many
codes, as most numerical applications needing a mathematical equation to represent the WRC of soils use the Brooks
& Corey (BC) (1964) and/or the van Genuchten (vG) (1980) models. To allow for a wider application of the MK model,
the authors propose in this paper a direct conversion of MK model parameters to the BC and vG parameters for

  

Source: Aubertin, Michel - Département des génies civil, géologique et des mines, École Polytechnique de Montréal

 

Collections: Engineering; Environmental Management and Restoration Technologies