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Investigation of shallow leakage zones in a small embankment dam using repeated resistivity measurements in Internal erosion in embankment dams and their foundations

På svenska

Author

Editor

  • J-J Fry
  • T Julinek
  • J Riha

Summary, in English

Resistivity measurements were carried out in order to identify preferential seepage paths in a small dam in central Sweden. Increased seepage flow had been observed at high reservoir levels. Repeated resistivity measurements were performed along the dam crest during 24 hours controlled rising of the reservoir. Each measurement data set was compared to the original reference data set using time-lapse inversion. Zones with gradually decreasing resistivity were identified inside the dam at the depth corresponding to the changed reservoir level. The zones were interpreted as preferential seepage paths. During a possible future repair of the dam this interpretation may be evaluated.

Publishing year

2011

Language

English

Pages

165-172

Publication/Series

[Host publication title missing]

Volume

13

Document type

Conference paper

Publisher

Institute of Water Structures, FCE, BUT, Brno, Czech Republic

Topic

  • Geotechnical Engineering

Keywords

  • seepage
  • resistivity
  • embankment dam

Conference name

Internal Erosion in Embankment Dams and Their Foundation

Conference date

2011-04-26 - 2011-04-29

Conference place

Brno, Czech Republic

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-80-7204-736-9