TY - GEN
T1 - Pre-collapse detection of failure in cavities by nanoseismic monitoring
AU - Tsesarsky, M.
AU - Wust-Bloch, H. G.
PY - 2010/12/1
Y1 - 2010/12/1
N2 - Nanoseismic Monitoring (NM) is a new development in applied seismology, which aimed at monitoring low to extremely-low energy source processes (ML >-4.0). NM was proved successful in detecting incipient failures generated with instable cliffs and active sinkholes. The feasibility of NM to detect pre-collapse failure of underground structures was tested within the ancient (ca. 1100 years old) bell-shaped caverns at the Bet Guvrin National Park, Israel. This site was selected because of the homogenous and massive nature of the host rock, the presence of spaced discontinuities and abundance of shallow underground openings. A series of field investigations with instrument deployment were carried out between March and November 2008. Data analysis shows that it is indeed possible to detect extremely weak spiky signals, whose characterization and location indicate that they are generated by brittle failure within the chalk material of the bell-shaped caves.
AB - Nanoseismic Monitoring (NM) is a new development in applied seismology, which aimed at monitoring low to extremely-low energy source processes (ML >-4.0). NM was proved successful in detecting incipient failures generated with instable cliffs and active sinkholes. The feasibility of NM to detect pre-collapse failure of underground structures was tested within the ancient (ca. 1100 years old) bell-shaped caverns at the Bet Guvrin National Park, Israel. This site was selected because of the homogenous and massive nature of the host rock, the presence of spaced discontinuities and abundance of shallow underground openings. A series of field investigations with instrument deployment were carried out between March and November 2008. Data analysis shows that it is indeed possible to detect extremely weak spiky signals, whose characterization and location indicate that they are generated by brittle failure within the chalk material of the bell-shaped caves.
UR - http://www.scopus.com/inward/record.url?scp=84859903667&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84859903667
SN - 9780415804813
T3 - Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst - Proceedings of the Regional Symposium of the International Society for Rock Mechanics, EUROCK 2009
SP - 583
EP - 587
BT - Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst - Proceedings of the Regional Symposium of the International Society for Rock Mechanics, EUROCK 2009
T2 - Regional Symposium of the International Society for Rock Mechanics: Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst, EUROCK 2009
Y2 - 29 October 2009 through 31 October 2009
ER -