Convergence of large depth mining excavations in salt rock formations

Authors

  • Józef BIENIASZ Ośrodek Badawczo-Rozwojowy Górnictwa Surowców Chemicznych „Chemkop”; ul. Wybickiego 7, 31-261 Kraków
  • Waldemar WOJNAR Ośrodek Badawczo-Rozwojowy Górnictwa Surowców Chemicznych „Chemkop”; ul. Wybickiego 7, 31-261 Kraków
  • Andrzej SADOWSKI KGHM Polska Miedź S.A., Oddział Zakłady Górnicze „Polkowice-Sieroszowice”; 59-101 Polkowice Kaźmierzów
  • Joanna WRZOSEK KGHM Polska Miedź S.A., Oddział Zakłady Górnicze „Polkowice-Sieroszowice”; 59-101 Polkowice Kaźmierzów

DOI:

https://doi.org/10.7494/geol.2011.37.2.207

Keywords:

salt exploitation, deformation, convergence

Abstract

Measurements of the natural convergence of salt excavation at large depth exceeding 900 meters are conducted for 20 years by OBR Chemkop in Polkowice-Sieroszowice. In 2009 and 2010 the range of measurements increased to a dozen or so new stations. A long term observation of the excavation points revealed characteristic phases of the convergence phenomenon. In the first years of the salt excavations existence, values of linear convergence ranged from -100 mm/year to more than -600 mm/year. However, for excavations older than ten years, average speed of convergence varied from -30 mm/year to -100 mm/year. This is a typical graph of deformation for excavations on great depth in salt deposit.

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References

Bieniasz J., Wojnar W. & Misiek G., 2003. Deformacje układu filarowo-komorowego w perspektywie dalszej bezpiecznej działalności Kopalni Soli „Kłodawa”. Technika Poszukiwań Geologicznych. Geosynoptyka i Geotermia, 223, 45–50.

Marcola-Sadowska J., Bieniasz J. & Wojnar W. 2009. Zaciskanie konturu typowej komory prostopadłościennej w kopalni soli Kłodawa. Geologia (kwartalnik AGH), 35, 3 307–314.

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Published

2011-04-01

How to Cite

BIENIASZ, J., WOJNAR, W., SADOWSKI, A., & WRZOSEK, J. (2011). Convergence of large depth mining excavations in salt rock formations. Geology, Geophysics and Environment, 37(2), 207. https://doi.org/10.7494/geol.2011.37.2.207

Issue

Vol. 37 No. 2 (2011): Salt Review

Section

Articles

License

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