Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Water flow into undersea mine workings

  • 72 Accesses

  • 9 Citations

Summary

Production at a number of mines operating off the North East coast has been seriously affected by the percolation of significant quantities of water onto working coal faces. A detailed study of factors affecting the incidence and distribution of water inflows has been undertaken, using operational, geological and hydrological data. Analysis indicates that major inflows are a consequence of dynamic strata deformations, which induce discontinuities within the overburden capable of transmitting water from overlying aquiferous formations into workings. Operations tend to encounter excessive water inflows when: (1) cover to the Permian aquifer is less than 100 m or major Coal Measure aquifers exist within about 45 m of workings; (2) tensile face strains induced at the base of the Permian exceed 6 mm m−1; (3) sandstone strata forms less than one third of the overburden, implying a lack of competence in the seam roof; (4) major strata ‘weights’ or ‘breaks’ occur; and (5) faults or other major discontinuities are present in the roof strata.

This is a preview of subscription content, log in to check access.

References

  1. Black, R.C. (1978) The influence of structure on underground water prediction and occurrence at Rohana Mine, Kitwe, Zambia,Conference on Water in Mining and Underground Works, Granada, Spain, p. 56.

  2. Darcy, H. (1856)Fontains Publiques de la Ville de Dijon, Dalmont, Paris.

  3. Elliott, R.E. (1978)Strain Zones and Water Migration above a Working Panel, National Coal Board, Internal Report.

  4. Garritty, P. (1980)Effects of Mining on Surface and Sub-surface Water Bodies, Ph.D. thesis, University of Newcastle upon Tyne.

  5. Gupta, R.N. (1982)The Influence of Setting Pressure on Support Performance and Strata Behaviour on Longwall Faces, Ph.D. thesis, University of Newcastle upon Tyne.

  6. Ineson, J. (1962) A hydrogeological study of the permeability of chalk,Journal of the Institution of Water Engineers 16, 449–63.

  7. Kapp, W.A. and Williams, R.C. (1972) Extraction of coal in the Sydney Basin from beneath large bodies of water.Conference of the Australian Institution of Mining and Metallurgy, pp. 77–87.

  8. National Coal Board (1975)Subsidence Engineer's Handbook, 2nd edn, National Coal Board Mining Department, London.

  9. Orchard, R.J. (1969) The control of ground movements in undersea working,Mining Engineer 128, 259–72.

  10. Orchard, R.J. (1975) Working under bodies of water,Mining Engineer 134, 261–70.

  11. Schmeider, A. (1978) Forecasting the rates of water inflowing into mines,Conference on Water in Mining and Underground Works, Granada, Spain, pp. 511–34.

  12. Singh, T.N. (1979) Personal communication.

  13. Von Schonfeldt, H., Wright, F.D. and Unrug, K.F. (1979) Subsidence and its effect on longwall mine design,Coal Convention of the American Mining Congress, St Louis.

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Garritty, P. Water flow into undersea mine workings. International Journal of Mining Engineering 1, 237–251 (1983). https://doi.org/10.1007/BF00881614

Download citation

Key words

  • Aquifer
  • geological structure
  • ground water
  • permeability
  • subsidence