The Development of Laboratory Equipment for Testing The Characteristics of Unsaturated Soils

Open access

Abstract

The laboratory assessment of the hydraulic characteristics of unsaturated soils usually requires expensive equipment and an extended time period. With lack of financial support, yet taking advantage of local knowledge and resources, the development of cheaper alternative equipment is presented in the present paper. The automated setup allows the assessment of the saturation degree of soil samples subjected to different suctions.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1] Klute A.: Laboratory measurement of hydraulic conductivity of unsaturated soil. Methods of Soil Analysis Mono. 9 Part 1. American Society of Agronomy Madison WI USA 1965 253–261.

  • [2] Hamilton J. M. Daniel D. E. Olson R. E.: Measurement of hydraulic conductivity of partially saturated soils. Permeability and Groundwater Contaminant Transport. ASTM Special Technical Publication 746 1981 182–196.

  • [3] Watson K. K.: An instantaneous profile method for determining hydraulic conductivity of unsaturated porous materials. Water Resources Research 2/4. (1966) 709–715. https://doi.org/10.1029/WR002i004p00709

  • [4] Gardner W. R.: Calculation of capillary conductivity from pressure plate out flow data. Soil Science Society of America 20/3. (1956) 317–320. https://doi.org/10.2136/sssaj1956.03615995002000030006x

  • [5] Benson C. H. Gribb M. M.: Measuring unsaturated hydraulic conductivity in the laboratory and field. In: Unsaturated Soil Engineering Practice (eds: Houston S. L. Fredlund D. G.) American Society of Civil Engineers GSP 68 New York NY 1997 113–168.

  • [6] Leij F. J. van Genuchten M. Th.: Characterization and measurement of the hydraulic properties of unsaturated porous media. (eds.: van Genuchten M. Th. Leij F. J. Wu L.) Proceedings of International Workshop on Characterization and Measurements of the Hydraulic Properties of Unsaturated Porous Media. U.S. Salinity Laboratory and Univer sity of California Riverside CA October 22-24 1997 31–42.

  • [7] Brooks R. H. Corey A. T.: Hydraulic properties of porous medium. Hydrology Paper 3. Colorado State University Fort Collins Colorado USA 1964. https://mountainscholar.org/bitstream/handle/10217/61288/HydrologyPapers_n3.pdf?sequence

  • [8] Fredlund D. G. Xing A. Huang S.: Predicting the permeability function for unsaturated soil using the soil-water characteristic curve. Canadian Geotechnical Journal 31/4. (1994) 533–546. https://doi.org/10.1139/t94-062

  • [9] Mualem Y.: A new model for predicting the hydraulic conductivity of unsaturated porous media. Water Resources Research 12/3. (1976) 513–522. https://doi.org/10.1029/WR012i003p00513

  • [10] Van Genuchten M. T.: A closed-form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Science Society of America Journal 44/5. (1980) 892–898. http://doi.org/10.2136/sssaj1980.03615995004400050002x

  • [11] Vanapalli S. K. Nicotera M. V. Sharma R.S.: Axis translation and negative water column techniques for suction control. In: Laboratory and Field Testing of Unsaturated Soils (eds.: Tarantino A. Romero E. Cui Y. J.) Springer Dordrecht 2009 33-48. https://doi.org/10.1007/978-1-4020-8819-3_4

  • [12] Burdine N. T.: Relative Permeability Calculations From Pore Size Distribution Data Transactions of the American Institute of Mining & Metallurgical Engineers 198 (1953) 71 – 78. https://doi.org/10.2118/225-G

  • [13] Coley G.: element14 BeagleBone Black System Reference Manual Premier Farnell 2014 https://cdn.sparkfun.com/datasheets/Dev/Beagle/e14BBB_SRM_rev 0.9.pdf (accessed: October 2017).

  • [14] BeagleBoard.org BeagleBone. https://beagleboard.org/bone (accessed: October 2017).

Search
Journal information
Metrics
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 45 45 1
PDF Downloads 35 35 0