Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Modelling coupled behaviour of a clay barrier at high temperatures

Sanchez, M. and Gens, A. and Guimarães, L.D.N. and Olivella, S. (2006) Modelling coupled behaviour of a clay barrier at high temperatures. In: GeoProc 2006: Advances on coupled thermo-hydro-mechanical-chemical processes in geosystems and engineering. Science Press, Beijing, pp. 75-80. ISBN 9787030187505

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

The design of repositories for the isolation of radioactive waste generally contemplates the use of expansive clays as a buffer material. In field conditions the clay barrier will be hydrated under confined conditions and will also undergo processes of heating, up to maximum of 100 ° C ( this is according to the Spanish concept for the isolation of high level radioactive waste). Based on experimental data, models have been developed to explain and reproduce the observed thermo-hydro-mechanical (THM) behaviour of expansive clays. However, unplanned overheating in a large scale test has provided the opportunity to analyze the clay barrier under conditions quite different from the design ones. A THM formulation and constitutive model have been used to describe and reproduce the main aspects of the observed response of the clay barrier. The analysis provides a unique opportunity to test our current understanding of compacted expansive clay behaviour at temperatures not previously reached.

Item type: Book Section
ID code: 8528
Keywords: thermo-hydro-mechanical, radioactive waste, clay barrier, temperature, expansive clay, buffer, Environmental Sciences, Engineering (General). Civil engineering (General)
Subjects: Geography. Anthropology. Recreation > Environmental Sciences
Technology > Engineering (General). Civil engineering (General)
Department: Faculty of Engineering > Civil and Environmental Engineering
Faculty of Engineering > Design, Manufacture and Engineering Management
Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 15 Sep 2009 09:28
    Last modified: 17 Jul 2013 13:19
    URI: http://strathprints.strath.ac.uk/id/eprint/8528

    Actions (login required)

    View Item