Laboratory determination of Soil-Water Characteristic Curves for cracked soil

M. M. Abbaszadeh, Sandra Houston, Claudia Zapata, W. Houston, Bruno Welfert, K. Walsh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

In general, unsaturated hydraulic conductivities are more difficult to estimate than are saturated, but as the soil transitions from intact to cracked, the difficulty in estimating the hydraulic conductivity and the water storage properties increases. One critical step in determination of unsaturated flow hydraulic properties lies in the evaluation of the Soil-Water Characteristic Curve (SWCC). In this paper, the authors' experience with a series of laboratory studies of direct measurements of cracked soil SWCCs is presented, including challenges associated with very low suction control. An oedometer-type SWCC apparatus, capable of suction and net normal stress control was used in these lab studies. This paper also addresses how the Air Entry Value (AEV) of the cracks can be calculated theoretically based on capillary theory, and the results are compared against AEVs determined from laboratory tests.

Original languageEnglish (US)
Title of host publicationUnsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils
Pages409-415
Number of pages7
StatePublished - Dec 1 2011
Event5th International Conference on Unsaturated Soils - Barcelona, Spain
Duration: Sep 6 2010Sep 8 2010

Publication series

NameUnsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils
Volume1

Other

Other5th International Conference on Unsaturated Soils
CountrySpain
CityBarcelona
Period9/6/109/8/10

ASJC Scopus subject areas

  • Soil Science

Fingerprint Dive into the research topics of 'Laboratory determination of Soil-Water Characteristic Curves for cracked soil'. Together they form a unique fingerprint.

  • Cite this

    Abbaszadeh, M. M., Houston, S., Zapata, C., Houston, W., Welfert, B., & Walsh, K. (2011). Laboratory determination of Soil-Water Characteristic Curves for cracked soil. In Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils (pp. 409-415). (Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils; Vol. 1).