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Modelling fluid flow in opalinus clay excavation damage zone: a semi-analytical approach

Author
Alcoverro, J.; Olivella, S.; Alonso, E.
Type of activity
Journal article
Journal
Geological Society, London, special publications
Date of publication
2014-12
Volume
415
First page
143
Last page
166
DOI
https://doi.org/10.1144/SP415.7 Open in new window
Repository
http://hdl.handle.net/2117/83322 Open in new window
URL
http://sp.lyellcollection.org/content/415/1/143.abstract Open in new window
Abstract
The HG-A in situ test, located at the Mont Terri Underground Rock Laboratory (URL), was analysed as part of the FORGE project. This test investigated the behaviour of the excavation damage zone (EDZ) around a backfilled microtunnel by a series of water- and gas-injection tests. Prior to testing, the backfilled microtunnel was sealed with a hydraulic megapacker system. A key aspect was the investigation of crack opening and closure along the EDZ in response to water and gas injections in the cont...
Citation
Alcoverro, J., Olivella, S., Alonso, E. Modelling fluid flow in opalinus clay excavation damage zone: a semi-analytical approach. "Geological Society, London, special publications (Print)", Desembre 2014, vol. 415, p. 143-166.
Keywords
crack, damage, excavation, fluid flow, numerical model, radioactive waste, waste disposal
Group of research
MSR - Soil and Rock Mechanics

Participants