Tridimensional analysis of the dynamic behaviour of a fortification under an induced seismic event
DOI:
https://doi.org/10.4067/S0718-28132017000100008Keywords:
rockburst, energy demand, Flac3D, rockmass, seismic event, seismic energyAbstract
The rockburst risk has been increasing worldwide, as the tendency is to execute activities in deeper environments. In most projects affected by seismicity, seismic monitoring is operating on the rockmass, and, according to the dynamic behaviour registered at these devices, seismic intensity assessment is provided for each seismic event. The measure of support capacity to absorb energy when submitted to these events has been the subject of intensive research over the last twenty five years. However, the amount of energy effectively received by the support (demand of energy), still is uncertain under real events conditions. The present work corresponds to a tridimensional modelling executed in Flac3D software. The main objective of this study is to estimate the seismic energy transferred by the rockmass to the underground support considering different seismic magnitudes and to compare them with published results.
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