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Measurement of hydraulic conductivity by the tracer dilution method
Summary Hydraulic conductivity can be studiedin situ by the tracer dilution method. The advantages here, compared with sampling and laboratory tests, are better representation of the natural conditions, the possibility of generalizing the results to the surroundings through the continuity of flow, and the possibility of obtaining information in conditions where sampling is not possible or the samples are not representative. The authors have used experimental calibration instead of calculations in transforming dilution velocity to actual flow velocity which results in a more profound basis for interpretation. The method has basically been used in sand-gravel formations but measurements in solid sedimentary or in “hard-rock” conditions also give positive results. The method described here and the instrument developed are most suitable for shallow ground water studies. The instrument works with a colloidal tracer or an electrolyte depending on the circumstances and the user's choice. They have been used because of their environmental neutrality and their simple practical use compared with, for example, radioactive tracers.
Measurement of hydraulic conductivity by the tracer dilution method
Summary Hydraulic conductivity can be studiedin situ by the tracer dilution method. The advantages here, compared with sampling and laboratory tests, are better representation of the natural conditions, the possibility of generalizing the results to the surroundings through the continuity of flow, and the possibility of obtaining information in conditions where sampling is not possible or the samples are not representative. The authors have used experimental calibration instead of calculations in transforming dilution velocity to actual flow velocity which results in a more profound basis for interpretation. The method has basically been used in sand-gravel formations but measurements in solid sedimentary or in “hard-rock” conditions also give positive results. The method described here and the instrument developed are most suitable for shallow ground water studies. The instrument works with a colloidal tracer or an electrolyte depending on the circumstances and the user's choice. They have been used because of their environmental neutrality and their simple practical use compared with, for example, radioactive tracers.
Measurement of hydraulic conductivity by the tracer dilution method
Esko, Malkki (author) / Heikki, Wihuri (author)
1982
Article (Journal)
English
Measurement of hydraulic conductivity by the tracer dilution method
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