Investigation of shallow leakage zones in a small embankment dam using repeated resistivity measurements in Internal erosion in embankment dams and their foundations
Författare
Redaktör
- 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.
Avdelning/ar
Publiceringsår
2011
Språk
Engelska
Sidor
165-172
Publikation/Tidskrift/Serie
[Host publication title missing]
Volym
13
Fulltext
- Available as PDF - 176 kB
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Dokumenttyp
Konferensbidrag
Förlag
Institute of Water Structures, FCE, BUT, Brno, Czech Republic
Ämne
- Geotechnical Engineering
Nyckelord
- 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/Övrigt
- ISBN: 978-80-7204-736-9