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Grouting of large karstic caverns in dobrogea Coalfield, Bulgaria

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Abstract

The paper describes the results of an experimental grouting programme carried out by the Spetstamponazhgeologia association at the Dobrogea coalfield in Bulgaria. The anticipated water inflow into a shaft at this deposit totals 8 m3/s at a pressure of 12 MPa, from a cavity size equal or exceeding 3 metres. Grouting operations made it possible to cut down water inflow by a factor of more than one thousand. The success of this investigation has enabled the author to design an exprrimental shaft sinking project through the valange formation at Dobrogea mine.

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Authors and Affiliations

  1. Specialized Association Spetstamponazhgeologia, 7a Petrovski St., Antratsit, Voroshilovgrad Region, USSR

    E. Ja. Kipko D. Sc. Min. Eng. (Professor, Director General)

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  1. E. Ja. Kipko D. Sc. Min. Eng.
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Kipko, E.J. Grouting of large karstic caverns in dobrogea Coalfield, Bulgaria. International Journal of Mine Water 4, 35–39 (1985). https://doi.org/10.1007/BF02504834

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  • DOI: https://doi.org/10.1007/BF02504834

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