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Underground measurement of fracture permeability of coal within a shaft pillar

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Abstract

The paper describes the work undertaken to determine the in situ permeability of coal in a virgin seam. The installation and testing procedures are outlined. The results are analysed to evaluate the effect of localised fractures and fissures on the seams' permeability. An estimation of the size of a localised fracture is made from the results using a method developed by Barker [1].

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References

  1. Barker, J. A. A formula for estimating fissure transmissivities from steady-state injection test data. Journal of Hydrology, 1981.

  2. Neate, C. J. Effects of mining subsidence on the permeability of coal measures rocks. Ph.D. thesis, University of Nottingham, October 1980.

  3. Aston, T. R. C. Hydrogeological Aspects of Rock Mechanics and Mining subsidence around Longwall extractions. Ph.D. thesis, University of Nottingham, October 1982.

  4. Whittaker, B. N. and Singh, R. N., ‘Design Aspects of Barrier Pillar against water-logged workings in Coal Mining Operations’. Symposium in Water in Mining and Underground Works, Granada, Spain, Vol. 2, p. 675, September 1978.

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  5. Hoek, E. and Bray, J. Rock Slone Engineering, Institute of Mining and Metallurgy.

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Authors and Affiliations

  1. Department of Mining Engineering, University of Nottingham, Nottingham, UK

    D. J. Reddish & S. F. Smith

Authors
  1. D. J. Reddish
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  2. S. F. Smith
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Reddish, D.J., Smith, S.F. Underground measurement of fracture permeability of coal within a shaft pillar. International Journal of Mine Water 1, 13–22 (1982). https://doi.org/10.1007/BF02504828

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  • DOI: https://doi.org/10.1007/BF02504828

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