In rock slope analysis, formation and growth of microcracks are usually coupled with the propagation of elastic waves that can be detected by a suitable microseismic monitoring system. The correct analysis and interpretation of the recorded activity can provide information on the size and the type of the rupture mechanisms. A combination of the coherency computation and the source location techniques, typically used in seismic signal processing, is here proposed to this aim. The application to a microseismic dataset recorded by the microseismic monitoring system installed on the Matterhorn Peak, has evidenced the effectiveness of this approach. In particular the coherency has allowed to identify a set of similar appearing events, while the location of the corresponding hypocenters has evidenced the alignment of the sources on a planar surface, whose orientation is closed to the orientation of a discontinuity system resulting from a morphostructural survey
Application of a multiplet-location coupled technique to microseismic data for identification of rock slope active surfaces / Occhiena, Cristina; Pirulli, Marina; Scavia, Claudio. - STAMPA. - 2:(2013), pp. 101-108. (Intervento presentato al convegno Second World Landslide Forum tenutosi a Roma (ITALY) nel 3-7 October 2011).
Application of a multiplet-location coupled technique to microseismic data for identification of rock slope active surfaces
OCCHIENA, CRISTINA;PIRULLI, MARINA;SCAVIA, Claudio
2013
Abstract
In rock slope analysis, formation and growth of microcracks are usually coupled with the propagation of elastic waves that can be detected by a suitable microseismic monitoring system. The correct analysis and interpretation of the recorded activity can provide information on the size and the type of the rupture mechanisms. A combination of the coherency computation and the source location techniques, typically used in seismic signal processing, is here proposed to this aim. The application to a microseismic dataset recorded by the microseismic monitoring system installed on the Matterhorn Peak, has evidenced the effectiveness of this approach. In particular the coherency has allowed to identify a set of similar appearing events, while the location of the corresponding hypocenters has evidenced the alignment of the sources on a planar surface, whose orientation is closed to the orientation of a discontinuity system resulting from a morphostructural surveyPubblicazioni consigliate
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https://hdl.handle.net/11583/2477984
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