000018872 001__ 18872
000018872 005__ 20170118182245.0
000018872 04107 $$aeng
000018872 046__ $$k2017-01-09
000018872 100__ $$aZembaty, Zbigniew
000018872 24500 $$aAcquiring Rotational Ground Motion From Triggered Seismic Events

000018872 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018872 260__ $$b
000018872 506__ $$arestricted
000018872 520__ $$2eng$$aThis paper presents preliminary results of a program of collecting ground rotations from the surface stations of deep mining area of “Ziemowit” mine located in the Upper Silesian Coal Basin in Poland. A set of 51 rotations records acquired during the first 7 weeks of the recording program was analyzed. Three strongest records are discussed in detail in this paper. The program, in its longer perspective, aims at getting rotations of as intensive mine tremors as possible. So far the maximum measured rotational velocity reached 0.03o/s, while respective maximum rotational acceleration was equal to 2.53 o/s2 which was measured during mine tremor with local Modified Mercalli intensity of about IV. These rotations represent rockbursts of rather low magnitude, well below mL=3, but stronger mine tremors are expected to be collected in near future. The time history records of ground rotations have similar durations like the translational records but their Fourier spectra are shifted in a characteristic way, predicted by theoretical analyses [5], [17].

000018872 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018872 653__ $$aseismic ground rotations; mine tremors; ground motion; Fourier spectra

000018872 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018872 720__ $$aZembaty, Zbigniew$$iMutke, Grzegorz
000018872 8560_ $$ffischerc@itam.cas.cz
000018872 8564_ $$s346802$$uhttps://invenio.itam.cas.cz/record/18872/files/239.pdf$$yOriginal version of the author's contribution as presented on USB, paper 239.
000018872 962__ $$r16048
000018872 980__ $$aPAPER