Application of tracer techniques to investigate water leak: a case study from Nortonbridge reservoir

Simple item page
dc.contributor.authorJayakody, Jeevan
dc.contributor.authorGunatilake, Jagath
dc.date.accessioned2024-12-02T10:31:12Z
dc.date.available2024-12-02T10:31:12Z
dc.date.issued2005-11-10
dc.description.abstractThe Nortonbridge reservoir was constructed across the 'Kehelgamu Oya' in 1953. Recently, a critical leakage problem was encountered where water emerged out from two nearby springs approximately 50 m downstream of the dam on the right bank of the Kehelgamu Oya. This is not only an economical loss to the project but also a threat to the safety of the abutments, dam and appurtenant structures. Field investigations supported by tracer analysis were used to identify ingress location along the 'Agra Oya.' Subsequent detailed geological mapping carried out in this area could specify four possible ingress locations. Application of tracers such as uranine and odium chloride as well as turbid water indicates that the ingress areas are not within the reservoir but along the Agra Oya, about 450 m upstream from the Nortonbridge dam. Major causative factor for the leakage is relatively high intensity of open joints, which extend from Agra Oya to downstream areas to the Kehelgamu Oya. We suggest construction of an impervious blanket by temporarily diversion of Agra Oya as a remedial measure to seal off the joints.
dc.identifier.citationPeradeniya University Research Sessions PURSE - 2005, Proceeding and Abstracts November 10., 2005, Vol.10., University of Peradeniya, Sri Lanka, pp.139
dc.identifier.isbn955-589-084-7
dc.identifier.issn1391-4111
dc.identifier.urihttps://ir.lib.pdn.ac.lk/handle/20.500.14444/4364
dc.language.isoen_US
dc.publisherUniversity of Peradeniya
dc.relation.ispartofseries10
dc.subjectNortonbridge reservoir
dc.subjectWater leak
dc.titleApplication of tracer techniques to investigate water leak: a case study from Nortonbridge reservoir
dc.typeArticle
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Jeevan Jayakody - 2005.pdf
Size:
340.28 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed to upon submission
Description:
Download
Collections
PURSE 2005