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Seepage loss from a canal in Sri Lanka measured using tritium tracer

  • J K Dharmasiri
  • K G Dharmawardena
  • P Manchanayake
  • M M G Navaratna
  • D A Wickremarachchi
  • P S Goel
Article
  • 29 Downloads

Abstract

Using single borehole dilution technique, and tritiated water as tracer, lateral flow rate of water near the phreatic line has been measured at 24 points along the banks of an unlined canal. Permeability values range from 0.5×10−6 m sec−1 to 34×10−6 m sec−1; the median value being 5×10−6m sec−1. The seepage loss is estimated to be 5×10−5 m3 sec−1 m−1. For the entire canal the value is 0.74 m3 sec−1 which is 12% of the total flow. Limitations and merits of the technique are discussed.

Keywords

Canal seepage tritium tracer seepage loss borehole dilution nuclear hydrology 

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References

  1. Aravin V I and Numerov S N 1953Theory of flow in undeformable porus media (Isreal Program for Scientific Translations Ltd, translated in 1965) pp 189Google Scholar
  2. Dharmasiri J K, Dharmawardena K G, Wijesinghe M W P, Thiranagama P, de Mel I D T, Wickremarachchi D A and Goel P S 1982Nordic Hydrology, (in press)Google Scholar
  3. Goel P S, Datta P S and Tanwar B S 1977Nordic Hydrology 8 211Google Scholar
  4. Halevy E, Moser H, Zellhofer O and Zuber A 1967 In:Isotopes in Hydrology (IAEA, Vienna) pp 531Google Scholar
  5. Harr M E 1962Groundwater and seepage (New York: Mc Graw Hill) pp 231Google Scholar
  6. Kaufman W J and Todd D K 1962 In: Tritium in the physical and biological sciences, Vol. 1 (TAEA, Vienna) pp 83Google Scholar
  7. Krishnamurthy K and Rao S M 1969J. Hydrol. 9 277CrossRefGoogle Scholar
  8. Muskat M 1937.The flow of homogeneous fluids through porus media (New York: McGraw-Hill) (reprinted by J.E. Edwards publisher Inc. Ann Arbor, 1946)Google Scholar
  9. Vedernikov V V 1934Seepages from channels (Gosstroiizdat, quoted in Harr, 1962; and in Aravin and Numerov, 1953).Google Scholar

Copyright information

© Indian Academy of Sciences 1981

Authors and Affiliations

  • J K Dharmasiri
    • 1
  • K G Dharmawardena
    • 1
  • P Manchanayake
    • 2
  • M M G Navaratna
    • 2
  • D A Wickremarachchi
    • 3
  • P S Goel
    • 4
  1. 1.Radioisotope CentreUniversity of ColomboSri Lanka
  2. 2.Department of IrrigationColomboSri Lanka
  3. 3.Atomiĉ Energy Authority of Sri LankaColomboSri Lanka
  4. 4.Department of ChemistryIndian Institute of TechnologyKanpurIndia

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