| Title: |
The FEBEX benchmark test: case definition and comparison of modelling approaches |
| Authors: |
Alonso Pérez de Agreda, Eduardo; Alcoverro Bassols, Jordi; Coste, F.; Selvadurai, A. P. S.; Tsang, C.-F.; Malinsky, L.; Merrien-Soukatchoff, V.; Kadiri, I.; Nowak, T.; Shao, H.; Nguyen, T.S.; Armand, G.; Sobolik, S.R.; Itamura, M.; Stone, C.M.; Webb, S.W.; Rejeb, A.; Tijera, Manuel; Maouche, Z.; Kobayashi, A.; Kurikami, H.; Ito, A.; Sugita, Y.; Chijimatsu, M.; Börgesson, L.; Hernelind, J.; Rutqvist, J.; Jussila, P. |
| Contributors: |
Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica |
| Publisher Information: |
Elsevier |
| Publication Year: |
2005 |
| Collection: |
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
| Subject Terms: |
Bentonite; Numerical analysis; Thermodynamics; Hydrodynamics; Radioactive waste disposal; Benchmarking (Management)--Case studies; Benchmark; Case history; Nuclear waste; Thermo-hydro-mechanical analysis; Bentonita; Mètodes numèrics -- Hidrodinàmica; Termodinàmica; Residus radioactius -- Emmagatzematge; Benchmarking -- Casos; Estudis de |
| Description: |
The FEBEX (Full-scale Engineered Barriers Experiment in Crystalline Host Rock) ‘‘in situ’’ test was installed at the Grimsel Test Site underground laboratory (Switzerland) and is a near-to-real scale simulation of the Spanish reference concept of deep geological storage in crystalline host rock. A modelling exercise, aimed at predicting field behaviour, was divided in three parts. In Part A, predictions for both the total water inflow to the tunnel as well as the water pressure changes induced by the boring of the tunnel were required. In Part B, predictions for local field variables, such as temperature, relative humidity, stresses and displacements at selected points in the bentonite barrier, and global variables, such as the total input power to the heaters were required. In Part C, predictions for temperature, stresses, water pressures and displacements in selected points of the host rock were required. Ten Modelling Teams from Europe, North America and Japan were involved in the analysis of the test. Differences among approaches may be found in the constitutive models used, in the simplifications made to the balance equations and in the geometric symmetries considered. Several aspects are addressed in the paper: the basic THM physical phenomena which dominate the test response are discussed, a comparison of different modelling results with actual measurements is presented and a discussion is given to explain the performance of the various predictions. ; Peer Reviewed |
| Document Type: |
article in journal/newspaper |
| File Description: |
28 p.; application/pdf |
| Language: |
English |
| Relation: |
https://hdl.handle.net/2117/2221 |
| Availability: |
https://hdl.handle.net/2117/2221 |
| Rights: |
Open Access |
| Accession Number: |
edsbas.87A23B55 |
| Database: |
BASE |