An inverse procedure for estimating the unsaturated hydraulic conductivities of volcanic tuffs

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Description

A procedure is developed for estimating the hydraulic conductivity function of unsaturated volcanic tuff, using measurements of the sorptivity and capillary pressure functions. The method assumes that the sorptivity is a linear function of the initial saturation, as is suggested by experimental data. The procedure is tested on a vitrified tuff from the Calico Hills unit at Yucca Mountain, and the predicted conductivities are in reasonable agreement with measured values. Further tests of this method are needed to establish whether or not it can be routinely used for conductivity predictions.

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7 p.

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Zimmerman, R.W.; Bodvarsson, G.S.; Flint, A.L. & Flint, L.E. January 1, 1993.

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Description

A procedure is developed for estimating the hydraulic conductivity function of unsaturated volcanic tuff, using measurements of the sorptivity and capillary pressure functions. The method assumes that the sorptivity is a linear function of the initial saturation, as is suggested by experimental data. The procedure is tested on a vitrified tuff from the Calico Hills unit at Yucca Mountain, and the predicted conductivities are in reasonable agreement with measured values. Further tests of this method are needed to establish whether or not it can be routinely used for conductivity predictions.

Physical Description

7 p.

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INIS; OSTI as DE93010421

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  • 10. international high-level radioactive waste management conference, Las Vegas, NV (United States), 25-29 Apr 1993

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  • Other: DE93010421
  • Report No.: LBL--33464
  • Report No.: CONF-930408--50
  • Grant Number: AC03-76SF00098;AI08-78ET44802
  • Office of Scientific & Technical Information Report Number: 138759
  • Archival Resource Key: ark:/67531/metadc620216

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  • January 1, 1993

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  • June 16, 2015, 7:43 a.m.

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  • April 5, 2016, 11:56 a.m.

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Zimmerman, R.W.; Bodvarsson, G.S.; Flint, A.L. & Flint, L.E. An inverse procedure for estimating the unsaturated hydraulic conductivities of volcanic tuffs, article, January 1, 1993; California. (digital.library.unt.edu/ark:/67531/metadc620216/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.