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The effect of test cavity geology on the in situ permeability of coal measures strata associated with longwall mining

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Abstract

Longwall mining results in induced ground strains which cause in situ permeability changes in the surrounding strata. A review is made of the two methods most commonly used to measure in situ permeability changes, namely ‘pumping out’ and ‘pumping in’ tests, along with the advantages and dis-advantages of their use in Coal Measures strata. A detailed examination is then made of the effects of test cavity geology on the induced in situ permeability changes monitored at five investigation sites in Great Britain.

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Authors and Affiliations

  1. Cape Breton Coal Research Laboratory, Canmet, 210 George Street, Sydney, Nova Scotia, Canada

    T. R. C. Aston (Research Scientist)

  2. Department of Mining Engineering, Nottingham University, University Park, NE7 2RD, Nottingham, England

    R. N. Singh (Lecturer) & B. N. Whittaker (Reader)

Authors
  1. T. R. C. Aston
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  2. R. N. Singh
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  3. B. N. Whittaker
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Aston, T.R.C., Singh, R.N. & Whittaker, B.N. The effect of test cavity geology on the in situ permeability of coal measures strata associated with longwall mining. International Journal of Mine Water 2, 19–34 (1983). https://doi.org/10.1007/BF02504609

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  • DOI: https://doi.org/10.1007/BF02504609

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