Modelling Benchmark of a Laboratory Drying Test In Opalinus Clay
- Authors
- B. Garitte (Universidad Politécnica de Catalunya) | A. Gens (Universidad Politécnica de Catalunya) | Q. Liu (Chinese Academy of Sciences) | X. Liu (Chinese Academy of Sciences) | A. Millard (Commissariat à l’Energie Atomique) | A. Bond (Quintessa) | C. McDermott (ECOSSE, University of Edinburgh) | T. Fujita (Japan Atomic Energy Agency) | S. Nakama (Japan Atomic Energy Agency)
- Document ID
- ISRM-EUROCK-2010-178
- Publisher
- International Society for Rock Mechanics and Rock Engineering
- Source
- ISRM International Symposium - EUROCK 2010, 15-18 June, Lausanne, Switzerland
- Publication Date
- 2010
- Document Type
- Conference Paper
- Language
- English
- Copyright
- 2010. Taylor & Francis Group - London. Permission to Distribute - International Society for Rock Mechanics.
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| Price: | USD 20.00 |
ABSTRACT:
In this paper, a benchmark exercise from the DECOVALEX-2011 project is presented. Experimental results from a laboratory drying test in Opalinus Clay are used. First, the DECOVALEX project is introduced and the experimental setup of the laboratory drying test is described. Then the theoretical formulations and the parameters determination are explained.
1 INTRODUCTION
The main objective of the DECOVALEX (Development of coupled models and their validation against experiments) is to support the development of computer simulators and to compare model calculations with results from field and laboratory experiments. One of the tasks of the current phase of the DECOVALEX project, Task A, is to examine the hydromechanical changes that may occur in argillaceous host rocks, especially in relation to the ventilation of drifts. The task is based on the performance and results of the Ventilation Experiment (VE) carried out in the Mont Terri underground laboratory involving Opalinus clay. The task is organized in a progressive manner in terms of complexity of the computations to be performed, geared toward the full Chemo-Hydro- Mechanical (HMC) understanding of the VE, the final objective of the task. In this paper, the modelling exercise of the first Task step is presented: a relatively simple laboratory drying experiment (Floria et. al, 2002). This experiment was originally designed to provide information to help modelling the in-situ VE and offers the possibility to calibrate some of the parameters and to identify the main processes involved in the ventilation of argillaceous rocks.
2 DESCRIPTION OF THE DRYING TEST
The laboratory drying test (Floria et al., 2002)was realized in 2001, before the start of the in situ VE. Three cylindrical Opalinus Clay samples (height 0.28m and diameter 0.1 m) and a water pan were placed on balances in a drying chamber.
In this paper, a benchmark exercise from the DECOVALEX-2011 project is presented. Experimental results from a laboratory drying test in Opalinus Clay are used. First, the DECOVALEX project is introduced and the experimental setup of the laboratory drying test is described. Then the theoretical formulations and the parameters determination are explained.
1 INTRODUCTION
The main objective of the DECOVALEX (Development of coupled models and their validation against experiments) is to support the development of computer simulators and to compare model calculations with results from field and laboratory experiments. One of the tasks of the current phase of the DECOVALEX project, Task A, is to examine the hydromechanical changes that may occur in argillaceous host rocks, especially in relation to the ventilation of drifts. The task is based on the performance and results of the Ventilation Experiment (VE) carried out in the Mont Terri underground laboratory involving Opalinus clay. The task is organized in a progressive manner in terms of complexity of the computations to be performed, geared toward the full Chemo-Hydro- Mechanical (HMC) understanding of the VE, the final objective of the task. In this paper, the modelling exercise of the first Task step is presented: a relatively simple laboratory drying experiment (Floria et. al, 2002). This experiment was originally designed to provide information to help modelling the in-situ VE and offers the possibility to calibrate some of the parameters and to identify the main processes involved in the ventilation of argillaceous rocks.
2 DESCRIPTION OF THE DRYING TEST
The laboratory drying test (Floria et al., 2002)was realized in 2001, before the start of the in situ VE. Three cylindrical Opalinus Clay samples (height 0.28m and diameter 0.1 m) and a water pan were placed on balances in a drying chamber.
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