The acceleration response spectra for Legnica-Glogow copper district

• Autorzy: Olszewska D.

Identyfikatory

DOI

10.4467/2353737XCT.17.151.7163

Warianty tytułu

PL

Przyspieszeniowe spektra odpowiedzi dla rejonu Legnicko-Głogowskiego Okręgu Miedziowego

• Języki publikacji: EN

Abstrakty

EN

This paper presents average normalised acceleration response spectra calculated for mining induced seismic events which were recorded by twenty-one stations located in the area of Legnica-Glogow Copper District (LGCD). In this paper, 5.246 ground motion signals with peak ground acceleration (PGA) over 0.03 m/s² were analysed. The ground motions were caused by 1.886 mining events with M_L greater than 2 (energy > 10⁵J), which occurred from 2004 to 2015. The design response spectra were estimated based on average normalised acceleration response spectra. Further analysis of results shows that the shape and amplitude of response spectra are strongly dependent on the event magnitude, the epicentral distance and the location of the stations. The obtained response spectra could be used for computing seismic forces which have impact on buildings response to ground motions caused by mining events in LGCD.

PL

W pracy wyznaczono średnie znormalizowane przyspieszeniowe spektra odpowiedzi na podstawie zapisów drgań wstrząsów górniczych, zarejestrowanych przez 21 stanowisk akcelerometycznych znajdujących się, na terenie Legnicko Głogowskiego Okręgu Miedziowego (LGOM). Do analizy wykorzystano 5246 rejestracje drgań gruntu o wartościach szczytowych powyżej 0.03 m/s², wywołane 1886 wstrząsami górniczymi, o M_L5J), które miały miejsce od 2004 do 2015 roku. Na podstawie wyznaczonych znormalizowanych przyspieszeniowych spektrów odpowiedzi wyznaczono wzorcowe spektrum odpowiedzi dla tego rejonu. Pokazano także, że kształt i amplituda spektrów odpowiedzi zależy od wielkości zjawiska, odległości epicentralnej oraz od miejsca. Otrzymane wzorcowe spektrum odpowiedzi może być wykorzystywane do obliczania sił sejsmicznych oddziałujących na budowle w wyniku drgań podłoża wywołanych wstrząsami górniczymi w tym rejonie.

Słowa kluczowe

EN

response spectra; induced seismicity; local amplification

PL

spektra odpowiedzi; sejsmiczność indukowana; lokalna amplifikacja

• Wydawca: Wydawnictwo Politechniki Krakowskiej im. Tadeusza Kościuszki
• Czasopismo: Technical Transactions
• Rocznik: 2017
• Tom: Vol. 9(114)
• Strony: 99--115
• Opis fizyczny: Bibliogr. 33 poz., tab., wz., wykr.

Twórcy

autor

Olszewska D.

• Institute of Geophysics, Polish Academy of Sciences, Warsaw

Bibliografia

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Uwagi

EN

Section "Civil Engineering"

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)