Impact assessment of epicentral distances and energies of mining shocks on the transmission of free-field vibrations to the building foundations
Authors:
- Krystyna Kuzniar,
- Tadeusz Tatara
Abstract
The study analyses the results of measurements of mining related surface vibra-tions in the Legnica-Glogow Copper Region (LGCR) to assess the impact of mining tremor epicentral distances as well as mining tremors energies on a curve relationship (ratio) of re-sponse spectra (RRS) from simultaneously measured free-field vibrations and building foun-dations vibrations. The sources of considered vibrations were mine-induced rockbursts resulting from underground exploitation of copper ore. Only records induced by rockbursts with energy higher than 106 J and horizontal components of peak ground accelerations larger than 10cm/s2 are analysed. Epicentral distances of considered mining shocks are in the range re = 270 – 5839 m and energies are in the range En = 1∙106 – 2∙109 J. Dimensionless acceler-ation response spectra (β) as well as dimensional acceleration response spectra (Sa) from the horizontal vibrations were taken into account. The focus is on residential buildings – medium-rise building and high-rise building. The results of analyses show that the epicentral distance of mining shock can have a significant impact on the transmission of response spectra from the free-field to the residential building foundations (medium-rise building and high-rise building). This effect is more visible in the case of curves RRS(β) determined using dimen-sionless acceleration response spectra β than curves RRS(Sa) calculated for corresponding pairs for dimensional spectra Sa. The appropriate conclusions regarding the influence of min-ing tremors energies also have been achieved.
- Record ID
- CUT5722f6decf094035be03b3e5a7a8fedf
- Publication categories
- ; ;
- Author
- Pages
- 4645-4653
- Other elements of collation
- tab.; wykr.; Bibliografia (na s.) - 4653; Bibliografia (liczba pozycji) - 11; Oznaczenie streszczenia - Abstr.
- Book
- Papadrakakis M., M. Papadrakakis Fragiadakis M. M. Fragiadakis (eds.): COMPDYN 2017 : Computational Methods in Structural Dynamics and Earthquake Engineering : proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Rhodes Island, Greece 15-17 June 2017. [Vol. 2], 2017, Athens, National Technical University of Athens, Institute of Structural Analysis and Antiseismic Research. School of Civil Engineering. National Technical University of Athens (NTUA), ISBN 978-618-82844-2-5 vol. 2
- Keywords in English
- mining shocks, epicentral distance, mining energy, free-field vibrations, foundation vibrations, response spectra, transmission of vibrations
- URL
- https://2017.compdyn.org/ Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 5
- Publication indicators
- = 0
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT5722f6decf094035be03b3e5a7a8fedf/
- URN
urn:pkr-prod:CUT5722f6decf094035be03b3e5a7a8fedf
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