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Subsidence development with time — experiences from longwall operations in the Appalachian coalfield

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Summary

The development of mining subsidence, from the immediate roof to the surface, has a dynamic character and it is related to the progress of underground mining and time. Subsidence prediction methods which can pre-calculate the final and intermediate stages of this process are important in mine design. In this paper a prediction method proposed by Knothe (1953), and based on Gauss distribution of influences and Mitsherlich's ‘law of limited increase’, is presented and applied to determine the subsidence development over time in the Appalachian coalfield. The method has yielded very promising results and it was verified for a number of longwall case studies.

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References

  • Karmis, M., Schilizzi, P. and Jarosz, A. (1986) Development and comparison of subsidence prediction methods for Eastern US coalfields,Proceedings, Mine Subsidence Symposium, Fall SME and AIME Meeting, St Louis, Missouri, September 7–10, pp. 9–18.

  • Knothe, S. (1953) Wpływ czasu na kształtowanie się niecki osiadania,Archiwum Górnictwa i Hutnictwa, Tom 1, z.1. (In Polish.)

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  • Schober, F., Sroka, T. and Sroka, A. (1987) Zum Problem der Berechnung dynamischer, bergmannisch bedingter Senkungen,Das Markscheidewesen 94 (1987) Nr.4, pp. 416–24. (In German.)

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Authors and Affiliations

  1. Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, 24061, Blacksburg, Virginia, USA

    A. Jarosz & M. Karmis

  2. Institute for Mine Surveying, Clausthal Technical University, West Germany

    A. Sroka

Authors
  1. A. Jarosz
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  2. M. Karmis
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  3. A. Sroka
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Jarosz, A., Karmis, M. & Sroka, A. Subsidence development with time — experiences from longwall operations in the Appalachian coalfield. International Journal of Mining and Geological Engineering 8, 261–273 (1990). https://doi.org/10.1007/BF01554045

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  • DOI: https://doi.org/10.1007/BF01554045

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