Coupled thermo-hydro-mechanical analysis

  • In this thesis, the processes that take place in unsaturated soil at non-isothermal conditions are studied. Firstly, two devices have been modified: the thermo-hydro-mechanical (THM) column-type device and the oedometer device. Secondly, a new model for the hysteretic soil-water retention relationship, which occurred in the two-phase flow, is proposed. The model was validated by the numerical simulation of two-phase flow and against data from sand column tests. Thirdly, the study contributes to the identification of parameters for coupled THM analysis based on the back analysis approach. The study proposes a new strategy for identifying model parameters as well as assessing the reliability and accuracy of the identified model parameters. For sensitivity analysis of model-parameters, both local and global analyses are performed and the results are compared and critically discussed.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Metadaten
Author:Long Nguyen-TuanGND
URN:urn:nbn:de:hbz:294-42003
Subtitle (English):experiment and back analysis
Series (Serial Number):Schriftenreihe des Lehrstuhls für Grundbau, Boden- und Felsmechanik (49)
Referee:Tom SchanzGND, Maria DatchevaORCiDGND, Yu-Jun Cui, Ivan DimovGND
Document Type:Doctoral Thesis
Language:English
Date of Publication (online):2014/09/15
Date of first Publication:2014/09/15
Publishing Institution:Ruhr-Universität Bochum, Universitätsbibliothek
Granting Institution:Ruhr-Universität Bochum, Fakultät für Bau- und Umweltingenieurwissenschaften
Date of final exam:2014/01/17
Creating Corporation:Fakultät für Bau- und Umweltingenieurwissenschaften
GND-Keyword:Boden / Sättigung; Boden / Wassergehalt; Hysterese; Simulation; Sensitivitätsanalyse
Institutes/Facilities:Lehrstuhl für Grundbau, Boden- und Felsmechanik
Dewey Decimal Classification:Technik, Medizin, angewandte Wissenschaften / Ingenieurbau, Umwelttechnik
faculties:Fakultät für Bau- und Umweltingenieurwissenschaften
Licence (German):License LogoKeine Creative Commons Lizenz - es gelten der Veröffentlichungsvertrag und das deutsche Urheberrecht