INVERSE MODELLING OF SOIL HYDRAULIC CHARACTERISTIC FUNCTIONS

Stoimenova, Eugenia; Lins, Yvonne; Datcheva, Maria; Schanz, Tom

In this paper we evaluate 2D models for soil-water characteristic curve (SWCC), that incorporate the hysteretic nature of the relationship between volumetric water content θ and suction ψ. The models are based on nonlinear least squares estimation of the experimental data for sand. To estimate the dependent variable θ the proposed models include two independent variables, suction and sensors reading position (depth d in the column test). The variable d represents not only the position where suction and water content are measured but also the initial suction distribution before each of the hydraulic loading test phases. Due to this the proposed 2D regression models acquire the advantage that they: (a) can be applied for prediction of θ for any position along the column and (b) give the functional form for the scanning curves.

Cite

Citation style:

Stoimenova, Eugenia / Lins, Yvonne / Datcheva, Maria / et al: INVERSE MODELLING OF SOIL HYDRAULIC CHARACTERISTIC FUNCTIONS. 2006.

Access Statistic

Total:
Downloads:
Abtractviews:
Last 12 Month:
Downloads:
Abtractviews:

open graphic

Rights

Use and reproduction:

Export