TY - GEN
T1 - Non-intrusive seismic monitoring of high-level radioactive waste repositories
AU - Maurer, Hansruedi
AU - Marelli, Stefano
AU - Manukyan, Edgar
AU - Green, Alan G.
AU - Greenhalgh, Stewart A.
N1 - Publisher Copyright:
© 2012 SEG.
PY - 2012/1/1
Y1 - 2012/1/1
N2 - High-level radioactive waste needs to be isolated from the biosphere for ~1 million years. This can be achieved by embedding the waste in appropriate sealing material and then burying it within a suitable geological formation at considerable depth. Monitoring of disposed high-level radioactive waste requires non-intrusive methods to be applied. We have investigated the possibilities and limitations of seismic tomography for such a monitoring task. Changes within a repository are expected to produce subtle but measurable variations of the seismic waveforms when a high-quality sparker source and firmly grouted multi-component geophones are employed. Traveltime tomography is not expected to be particularly useful, but full-waveform inversions have the potential of characterizing changes within a repository. Application of the acoustic approximation proved to be unsuitable, but elastic inversions could provide useful diagnostic information.
AB - High-level radioactive waste needs to be isolated from the biosphere for ~1 million years. This can be achieved by embedding the waste in appropriate sealing material and then burying it within a suitable geological formation at considerable depth. Monitoring of disposed high-level radioactive waste requires non-intrusive methods to be applied. We have investigated the possibilities and limitations of seismic tomography for such a monitoring task. Changes within a repository are expected to produce subtle but measurable variations of the seismic waveforms when a high-quality sparker source and firmly grouted multi-component geophones are employed. Traveltime tomography is not expected to be particularly useful, but full-waveform inversions have the potential of characterizing changes within a repository. Application of the acoustic approximation proved to be unsuitable, but elastic inversions could provide useful diagnostic information.
UR - http://www.scopus.com/inward/record.url?scp=85059143826&partnerID=8YFLogxK
U2 - 10.1190/segam2012-0121.1
DO - 10.1190/segam2012-0121.1
M3 - Conference contribution
AN - SCOPUS:85059143826
SN - 9781622769452
T3 - Society of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012
SP - 1606
EP - 1610
BT - Society of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012
PB - Society of Exploration Geophysicists
T2 - Society of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012
Y2 - 4 November 2012 through 9 November 2012
ER -
