Lasocki, Stanislaw (2005) Probabilistic Analysis of Seismic Hazard Posed by Mining Induced Events. In: Controlling Seismic Risk RaSiM6. Australian Centre for Geomechanics, Nedlands, Australia, pp. 151-156. ISBN 0-9756756-1-3
Full text not available from this repository.Abstract
The probabilistic seismic hazard analysis (PSHA) is a standard tool to estimate possible impacts of future earthquakes. Mining induced seismicity can also be a source of strong ground motion. The strongest events from copper mines in Legnica-Glogow Copper District in Poland, though still weak in comparison to earthquakes, gave rise to peak ground acceleration as high as 0.2g and more. Differences between mining induced and natural seismic events, due to the link of the former to mining, mean, however, that the classic scheme of PSHA cannot be readily applied to induced seismicity problems. We have modified PSHA to take into account the facts that the seismic source zones in mines are transient and that the source size distribution is strongly non-linear. The final result of the analysis is a strong motion prediction related to a prescribed time period in the future. The modified PSHA is successfully applied in Poland to mitigate seismic risk posed by mining events. This paper presents the procedure and an example of its application for determining the design ground motion for a flotation wastes repository enlargement.
| Item Type: | Book Section |
|---|---|
| Subjects: | Region > Poland > Legnica-Glogow Copper District Inducing technology > Underground mining Methodology > Method and procesing |
| Project: | IS-EPOS project > LGCD: Regional seismicity and ground motion associating underground hard rock mining |