Geodetic and Seismological Observations Applied for Investigation of Subsidence Formation in the CSM Mine (Czech Republic)

V. Kajzar¹

¹Institute of Geonics of the Czech Academy of Sciences, Ostrava, Czech Republic

Min. miner. depos. 2018, 12(2):34-46

https://doi.org/10.15407/mining12.02.034

Full text (PDF)

ABSTRACT

Purpose. Undermined areas are affected by the creation of subsidence depressions due to long-term underground mining. In general, different geodetic methods are applied to obtain further information needed to determine the spatial development of the formation of a subsidence depression.

Methods. Application of these surveying methods enables us to investigate spatio-temporal changes of landscape relief in detail. Although the development of surveying technologies is in progress at present, conventional geodetic methods are still in use. Nowadays Global Navigation Satellite System (GNSS) surveying is mostly used for obtaining the actual degree of relief affection in undermined areas. Considering that during coal extraction induced seismic events are observed underground and on the surface, some seismological methods for their parameters determination were applied, e.g. foci location of induced seismic events, their classification by units of magnitude and by released seismic energy, frequency energy distribution, construction of Benioff graph and its derivation for assessment of adjacent working endangerment.

Findings. The results of the assessment and analyses of spatial data demonstrate the real development of the sub-sidence depression under study and the relief changes of the landscape during the investigated period, respectively.

Originality. It was recognized that all methods applied in this study represent very helpful tools for surveying subsidence depression and simultaneous monitoring of seismic activity development on an undermined area.

Practical implications. Based on obtained results it is possible to perform a comparison of current subsidence dimensions with the original rate of affection.

Keywords: Ostrava-Karviná coal basin, subsidence depression, surveying methods, seismic monitoring, displacement

REFERENCES

Bell, F.G., Stacey, T.R., & Genske, D.D. (2000). Mining Subsidence and Its Effect on the Environment: Some Differing Examples. Environmental Geology, 40(1-2), 135-152.
https://doi.org/10.1007/s002540000140

Bell, F.G., & Donelly, L.J. (2006). Mining and Its Impact on the Environment. London: CRC Press, Taylor & Francis Group.
https://doi.org/10.4324/9780203969519

Bláha, P., Doležalová, H., Müller, K., & Skopal, R. (2006). Observations on Heights on the Margin of Subsidence Depression. Transactions of the VŠB Technical University of Ostrava, Civil Engineering Series, 2(IV), 9-15.

Blodgett, S., & Kuipers, J.R. (2002). Technical Report on Underground Hard-Rock Mining: Subsidence and Hydrologic Environmental Impacts. Bozeman, Montana, United States: Center for Science in Public Participation.

Bogusz, M., & Mendecki, M. (2011). Seismic and Geodetic Observations of Subsidence Trough Development Over a Longwall Face in a Coal Bed under Extraction. Geoplanet: Earth and Planetary Sciences, 71-79.
https://doi.org/10.1007/978-3-642-19097-1_7

Crane, W.R. (1931). Factors Influencing Subsidence and Ground Movement. Washington, United States: U.S. Bureau of Mines, Information Circular.

Doležalová, H., Holub, K., & Kaláb, Z. (2008). Underground Coal Mining in the Karviná Region and Its Impact on the Human Environment (Czech Republic). Moravian Geographical Reports, 16(2), 14-24.

Doležalová, H., Kajzar, V., Souček, K., & Staš, L. (2012). Analysis of Surface Movements from Undermining Time. Acta Geodynamica et Geomaterialia, 9(3), 358-400.

Dulias, R. (2003). Subsidence Depressions in the Upper Silesian Coal Basin. Geomorphic Transactions, (2), 11-16.

Geertsma, J. (1973). Land Subsidence Above Compacting Oil and Gas Reservoirs. Petroleum Technology Journal, 25(06), 734-744.
https://doi.org/10.2118/3730-pa

Gisotti, G. (1991). A Case of Induced Subsidence for Extraction of Salt by Hydrosolution. Land Subsidence. In Proceeding 4th International Symposium on Land Subsidence (pp. 235-238). Houston, Texas, United States: International Association of Hydrological Sciences.

Green Gas DPB bulletins. (2018). Retrieved from
http://www.dpb.cz/geofyzika

Holub, K., Vajter, Z., Knotek, S., & Trávníček, L. (1991). Application of Results of Seismologic Monitoring During the Operation in Mine Workings in the Ostrava-Karviná Coal Basin. Publications of the Institute of Geophysics, Polish Academy of Sciences, M-15(235), 219-228.

Holub, K., & Petroš, V. (2008). Some Parameters of Rockbursts Derived from Underground Seismological Measurements. Tectonophysics, 456(1-2), 67-73.
https://doi.org/10.1016/j.tecto.2006.12.013

Holub, K., Rušajová, J., & Holečko, J. (2011). Particle Velocity Generated by Rockburst During Exploitation of the Longwall and its Impact on the Workings. International Journal of Rock Mechanics and Mining Sciences, 48(6), 942-949.
https://doi.org/10.1016/j.ijrmms.2011.05.004

Holub, K., Holecko, J., Rušajová, J., & Dombkova, A. (2012). Long-Term Development of Seismic Monitoring Networks in the Ostrava-Karviná Coal Mine District. Acta Geodynamica et Geomaterialia, 9(2), 115-132.

Holzer, T.L. (1984). Ground Failure Induced by Ground-Water Withdrawal from Unconsolidated Sediment. Man-Induced Land Subsidence. Geological Society of America Reviews in Engineering Geology, (6), 67-106.
https://doi.org/10.1130/reg6-p67

Hyndman, D., & Hyndman, D. (2011). Natural Hazards and Disasters. Belmont, United States: Cengage Learning.

Idziak, A.F., & Dubiel, R. (2011). Geophysics in Mining and Environmental Protection. New York, United States: Geoplanet: Earth and Planetary Sciences.
https://doi.org/10.1007/978-3-642-19097-1

Jiránková, E., Staš, L., Kajzar, V., & Doležalová, H. (2013). Mechanism of Rigid Overlaying of Carboniferous Strata Failure in Face Mining in the Case of Multiseams Deposit. Acta Geodynamica et Geomaterialia, 10(2), 189-195.

Kajzar, V., Doležalová, H., Staš, L., & Souček, K. (2009). Analysis of Horizontal Movements Accompanying Deve-lopment of Subsidence Depression in Non-Trivial Geo-Mechanical Conditions. In Proceeding 9th International Multidisciplinary Scientific GeoConference (pp. 735-739). Sofia, Bulgaria: Curran Associates.

Kajzar, V. (2011). Modelling the Effects of Mining of Mineral Deposits. Ph.D. Ostrava, Czech Republic: VŠB Technical University Ostrava.

Knothe, S. (1953). The Influence of Time to Creation a Sedimentation Basin. Archivum of Mining and Metallurgy, 1(1).

Kuenzer, C., Zhang, J., Tetzlaff, A., van Dijk, P., Voigt, S., Mehl, H., & Wagner, W. (2007). Uncontrolled Coal Fires and Their Environmental Impacts: Investigating Two Arid Mining Regions in North-Central China. Applied Geography, 27(1), 42-62.
https://doi.org/10.1016/j.apgeog.2006.09.007

Leica. (2018). Leica GPS1200 Series Technical Data. [online]. Available at:
http://www.gefos-leica.cz/public/img/produkty/geodeticke-pristroje/smartrover/leica_gps1200_technicalda-ta_en.pdf

Neset, K. (1984). The Influences of Undermining (Mining Surveying IV). Praha: SNTL.

Schenk, J. (2005). Measurement of Motions and Deformations in the Subsidence Depression. Ostrava, Czech Republic: VŠB Technical University Ostrava.

Stracher, G.B. (2007). Geology of Coal Fires. Case Studies from Around the World. Reviews in Engineering Geology, (XVIII), 283.

Vajter, Z., Knotek, S., & Holub, K. (1989). Application of Seismological Observations in Geomechanical Practice. Acta Montana, (81), 115-126.

Whittaker, B.N., & Reddish, D.J. (1989). Subsidence: Occurrence, Prediction and Control. Amsterdam, Netherlands: Elsevier.

Yarbrough, R.E. (1983). Surface Mining Environmental Monitoring and Reclamation. New York, United States: Elsevier.