Large-Dimensional Shells under Mining Tremors from Various Mining Regions in Poland

Authors: Joanna M. Dulińska, Maria Fabijańska

Abstract:

In the paper a detailed analysis of the dynamic response of a cooling tower shell to mining tremors originated from two main regions of mining activity in Poland (Upper Silesian Coal Basin and Legnica-Glogow Copper District) was presented. The representative time histories registered in the both regions were used as ground motion data in calculations of the dynamic response of the structure. It was proved that the dynamic response of the shell is strongly dependent not only on the level of vibration amplitudes but on the dominant frequency range of the mining shock typical for the mining region as well. Also a vertical component of vibrations occurred to have considerable influence on the total dynamic response of the shell. Finally, it turned out that non-uniformity of kinematic excitation resulting from spatial variety of ground motion plays a significant role in dynamic analysis of large-dimensional shells under mining shocks.

Keywords: Cooling towers, dynamic response, mining tremors, non-uniform kinematic excitation

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1062160

References:

[1] S. Lasocki, "Probabilistic seismic hazard analysis for mining-induced seismicity," in Controlling Seismic Hazard and Sustainable Development of Deep Mines. Proc. 7th International Symposium on Rockburst and Seismicity in Mines, Dalian, China, 2009, pp. 59-72.
[2] T. Tatara, An influence of surface mining-related vibration on low-rise buildings, Scientific Notebooks of Cracow University of Technology, no. 74, Krakow, 2002, pp. 61-70 (in Polish).
[3] G. Mutke, K. Stec, "Seismity in the Upper Silesian Coal Basin, Poland: Strong regional seismic events," in Proc. 4th International Symposium on Rockbursts and Seismcity in Mines, Krakow, Poland, 1997, pp. 213-217.
[4] R. Ciesielski, "Dynamic surface effects of underground copper ore mining in the Legnica Copper District, Poland," in Engineering Geology of Underground Movements. Proc. of the 23rd Annual Conference of the Engineering Group of the Geological Society, London, UK, 1988, pp. 435-444.
[5] A. Zerva, Spatial Variation of Seismic Ground Motions: Modeling and Engineering Applications, CRC Press,Taylor&Francis Group, FL, 2009.
[6] J. Dulinska, "In situ investigations of dynamic response of earth dam to non-uniform kinematic excitation," Archives of Civil Engineering, vol. 52, no. 1, pp. 37-58, Jan. 2006.
[7] G. Zanardo, H. Hao, C. Modena, "Seismic response of multi-span simply supported bridges to a spatially varying earthquake ground motion," Earthquake Engineering and Structural Dynamics, vol. 31, no. 6, pp. 1325-1345, June 2002.
[8] G. Mylonakis, D. Papastamatiou, J. Psycharis, K. Mahmoud, "Simplified modeling of bridge response on soft soil to nonuniform seismic excitation," Journal of Bridge Engineering, vol. 6, no. 6, pp. 587-597, 2001.
[9] R. W. Clough, J. Penzien, Dynamics of structures, New York: McGraw- Hill, Inc., 1975, pp. 575-578.
[10] M. D. Trifunac, M. I. Todorovska, "Spectra for differential motion of columns," Earthquake Engineering and Structural Dynamics, vol. 26, no. 2, pp. 251-268, Feb. 1997.
[11] A. Der Kiureghian, "A coherency model for spatially varying ground motion," Earthquake Engineering and Structural Dynamics, vol. 25, no. 1, pp. 99-111, Jan. 1996,
[12] D. Makovicka, "Response analysis of an RC cooling tower under seismic and windstorm effects," Acta Polytechnica, vol. 46, no. 6, pp. 17-21, Nov. 2006.
[13] T. Hara, "Dynamic analysis of R/C cooling tower shells under earthquake loading," in Proc. 5th International Symposium on Natural- Draught Cooling Towers, Istanbul, Turkey, 2004, pp. 283-291.
[14] T. Hara, P. L. Gould, "Local-global analysis of cooling tower with cutouts," Computers&Structures, vol. 80, no. 27-30, pp. 2157-2166, Nov. 2002.