Abstract
On May 2, 1993 more than 200 seismic events from an underground mine in Tyrol/Austria were recorded with short-period seismometers of a local seismic network which was introduced in the late 1980s to monitor the tectonic seismicity in Tyrol in greater detail. The cause of this series of mining-associated events has become the subject of intensive investigations—as it was associated with a subsidence affecting an area of 10.000 m2. Underground observations revealed a number of discontinuities along which the rock mass was able to move. Seismic recordings of the close-by seismic stations revealed two types of mechanisms: One mechanism seems to be associated with pure block-sliding along several discontinuities, while other signals indicate additional collapse. The consideration and combination of several seismological principles made possible the construction of a model of the mine collapse.
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© 1996 Birkhäuser Verlag, Basel
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Lenhardt, W.A., Pascher, C. (1996). The Mechanism of Mine-collapse Deduced from Seismic Observations. In: Knoll, P., Kowalle, G. (eds) Induced Seismic Events. Pageoph Topical Volumes. Birkhäuser Basel. https://doi.org/10.1007/978-3-0348-9204-9_1
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DOI: https://doi.org/10.1007/978-3-0348-9204-9_1
Publisher Name: Birkhäuser Basel
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