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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

Sjödahl, Pontus; Johansson, Sam and Dahlin, Torleif LU (2011) Internal Erosion in Embankment Dams and Their Foundation In [Host publication title missing] 13. p.165-172
Abstract
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.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
seepage, resistivity, embankment dam
in
[Host publication title missing]
editor
Fry, J-J; Julinek, T and Riha, J
volume
13
pages
165 - 172
publisher
Institute of Water Structures, FCE, BUT, Brno, Czech Republic
conference name
Internal Erosion in Embankment Dams and Their Foundation
ISBN
978-80-7204-736-9
language
English
LU publication?
yes
id
08175322-9ffb-4550-b73c-1046a93884b0 (old id 2344634)
date added to LUP
2013-11-05 14:17:53
date last changed
2016-04-16 09:57:55
@misc{08175322-9ffb-4550-b73c-1046a93884b0,
  abstract     = {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.},
  author       = {Sjödahl, Pontus and Johansson, Sam and Dahlin, Torleif},
  editor       = {Fry, J-J and Julinek, T and Riha, J},
  isbn         = {978-80-7204-736-9},
  keyword      = {seepage,resistivity,embankment dam},
  language     = {eng},
  pages        = {165--172},
  publisher    = {ARRAY(0xa4386b8)},
  series       = {[Host publication title missing]},
  title        = {Investigation of shallow leakage zones in a small embankment dam using repeated resistivity measurements in Internal erosion in embankment dams and their foundations},
  volume       = {13},
  year         = {2011},
}