DBPapers
DOI: 10.5593/SGEM2015/B12/S2.095

SOME METHODS OF HYDROGEOLOGICAL PROPERTIES EVALUATION AND THEIR USE IN MINE FLOODING FORECASTS

P. Bukowski, I. Augustyniak, K. Niedbalska
Friday 7 August 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-32-2 / ISSN 1314-2704, June 18-24, 2015, Book1 Vol. 2, 717-724 pp

ABSTRACT
Forecasts of mine flooding and any numerical model of hydrogeological conditions in the area of a flooded underground mine require a number of data on the studied area. Such data may be obtained through research of hydrogeological and geomechanical properties of rocks. The most significant step for flooding process is to carry out a capacitive assessment of mine workings and the rock mass, and an evaluation of inflows and their changes as a consequence of accumulating water in excavations. Such data may be obtained by, inter alia, laboratory tests of rocks and rock debris properties, and not any, but rather specific methods should be applied to project the mine flooding process. The article presents a proposed set of research methods that are useful for forecasts of the process and time of liquidated mines flooding, especially in reference to capacitive components of formed water bodies. The set of proposed research methods refers to the properties such as: drainage capacity, permeability and water capacity of rocks surrounding excavations and rock debris which forms caving gobs and shaft backfills. The research methodology elaborated in the Central Mining Institute (GIG) and the proposed methods of mine flooding projections can additionally be applied to other aspects of mine and environmental hydrogeology.

Keywords: hydrogeological properties of rocks, hydrogeological methods of investigations, hydrogeological conditions, mine flooding forecasting, mine liquidation