DBPapers
DOI: 10.5593/SGEM2014/B12/S2.107

SPECIAL METHODOLOGICAL APPROACHES FOR CLARIFYING OF ANOMALIES IN THE SEEPAGE REGIME OF HYDRAULIC STRUCTURES

E. Bednarova, M. Minarik, D. Gramblickova
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-08-7 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 2, 839-846 pp

ABSTRACT
Experiences from safety evaluation of dams in Slovak geological conditions proved, that most often reasons resulting in realisation of remedial measures were seepages. Seepages through the body of dam were recorded occasionally. Generally, seepages occurred in the subsoil of dam or in its abutments. The reasons of seepages were different. Sometimes it were excessive groundwater and seepage water levels, other times high filtration velocities which exceeded limit values, eventually other anomalies in the development of the filtration flow. In order to minimize the potential occurrence of such anomalies are in Slovakia for the long time utilised special geophysical measurements, which are part of controlling of the development of filtration regime. In this paper are presented selected lessons learned and experiences related to their application within the control of the dam safety.

Keywords: seepage, dam safety, geophysical methods