The impact of some parameters of mine-induced rockbursts on the transmission of free-field vibrations to the office building foundation / Krystyna Kuzniar, Krystyna Stec, Tadeusz Tatara // W: 16th European ... więcej

The impact of some parameters of mine-induced rockbursts on the transmission of free-field vibrations to the office building foundation / Krystyna Kuzniar, Krystyna Stec, Tadeusz Tatara // W: 16th European Conference on Earthquake Engineering, Thessaloniki, 18-21 June 2018 [Dokument elektroniczny]. – Thessaloniki : European Association for Earthquake Engineering - EAEE, 2018. – 9 s. : fot., wykr. – Tryb dostępu: http://papers.16ecee.org/files/Kuzniar%20Stec%20Tatara%2016ecee%20full%20text%20revised.pdf. – Oznaczenie ref./art.: 10286. – Bibliogr. s. 9, Abstr. – Miejsce wyd. wg lokalizacji konf.

The paper deals with the analysis of the transmission of the free-field vibrations induced by mining tremors to the foundations of low-rise office building. Rockbursts in one of the most seismically active ... więcej

The paper deals with the analysis of the transmission of the free-field vibrations induced by mining tremors to the foundations of low-rise office building. Rockbursts in one of the most seismically active mining regions in Poland – Upper Silesian Coalfield (USC), were the sources of building vibrations. Acceleration records of the free-field vibrations next to the analysed office building and on the building foundations were registered simultaneously using the so-called "an armed partition" accelerometers. Full-scale tests were performed many times in a period of 8 years (long-term experimental monitoring). The comparison of the maximal value of foundation vibrations (accelerations) and the maximal value of ground vibrations was the way of estimation of the vibration transmission from the ground to the building, as the simple and often applied method of analysis of the differences between the ground and building foundation vibrations. We focused on the horizontal components of accelerations, respectively parallel to the transverse and longitudinal axis of the building. Analysis of the results of measurements of mine-induced vibrations in respect to the changes of the maximal values of the horizontal components of acceleration during their transmission from the free-field to the foundation of the building leads to the conclusion that the influence of many variables: the mining rockburst energy, epicentral distance, the direction of wave propagation, maximum value of ground vibrations, vibration direction (parallel to the longitudinal or transverse axis of the building) on the numerical quantity of these changes can be observed.