Comprehensive study of the drying behavior of Boom clay: Experimental investigation and numerical modeling. (24th August 2017)

• Record Type: Journal Article
• Authors: Hubert, Julien; Plougonven, Erwan; Prime, Noémie; Léonard, Angélique; Collin, Frédéric
• Is Part Of: International journal for numerical and analytical methods in geomechanics. Volume 42:Number 2(2018)
• Page Start: 211
• Page End: 230
• Publication Date: 2017-08-24
• Subjects: convective drying -- mass and heat transfer -- porous medium -- shrinkage -- X‐ray microtomography; Soil mechanics -- Mathematics -- Periodicals; Rock mechanics -- Mathematics -- Periodicals; 624.1510151
• DOI: 10.1002/nag.2715
• Languages: English
• ISSNs: 0363-9061

Abstract

Summary: This paper presents a thermo‐hydro‐mechanical framework to model the drying behavior of Boom clay. First, the experimental campaign conducted Noémie Prime is briefly presented because it is used to validate the model. The data acquisition and processing is emphasized because of the use of X‐ray microtomography to be able to more accurately compare experimental and numerical strain fields. The different submodels are introduced. Numerical simulations are performed to illustrate the capability of the proposed model to reproduce the observed behavior. Finally, a comprehensive sensitivity study on several key model parameters associated with the water retention curve, and the permeability of the medium, is performed to get a better understanding of the physics behind the coupled model.