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Geological Society, London, Engineering Geology Special Publications; 1996; v. 11; p. 223-230;
DOI: 10.1144/GSL.ENG.1996.011.01.30
© 1996 Geological Society of London

Section 3: Geotechnics of underground repositories

Application of induced seismicity to radioactive waste management programmes

R. Paul Young

Applied Seismology and Rock Physics Laboratory, Department of Earth Sciences, Keele University, Staffordshire ST5 SBG, UK

Induced seismicity can make a unique contribution to our understanding of rock mass response due to excavation and thermal-induced loads, during the site characterization and performance monitoring of a nuclear waste repository. Field data, with supplementary laboratory studies, are presented to show how induced high-frequency acoustic emission/microseismicity (AE/MS) can be used as a tool for passive volumetric remote sensing of failure processes. Case studies are described using resultsfrom experiments carried out at Atomic Energy of Canada Ltd's (AECL) Underground Research Laboratory (URL). This site has been operated for the last ten years to investigate the concept of safe disposal of nuclear waste fuel in a granitic rock mass at 420 m depth.