Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/22731
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dc.contributor.authorWalshire, Lucas A.-
dc.contributor.authorRobbins, Bryant A.-
dc.date.accessioned2017-07-13T13:58:31Z-
dc.date.available2017-07-13T13:58:31Z-
dc.date.issued2017-06-
dc.identifier.urihttp://hdl.handle.net/11681/22731-
dc.identifier.urihttp://dx.doi.org/10.21079/11681/22731-
dc.descriptionThis is the original published version of ERDC/GSL SR-17-4. A revised version has since been published. The revised version can be found at the following link: http://dx.doi.org/10.21079/11681/25652-
dc.description.abstractAbstract: The soil water characteristic curve (SWCC) defines a constitutive relationship between the negative pressure that develops when a soils saturation level is less than fully saturated, and the corresponding volume of water held in the pore space of the soil matrix. As this relationship is not commonly measured in geotechnical laboratories, practitioners often attempt to predict this relationship based on other commonly measured material properties using empirical prediction methods. The performance of five SWCC empirical predictors was evaluated through comparisons to independently measured SWCC data for four soils. SWCC prediction methods were selected for this investigation if they incorporated commonly measured soil properties to predict the SWCC. The error in the SWCC prediction was assessed in terms of both the mean squared error on the SWCC prediction and the impact of the error on a numerical analysis of the Green and Ampt infiltration problem. The results of the numerical analysis were assessed in terms of a normalized saturation coefficient. The normalized saturation coefficient provided a clear means of monitoring a transient seepage analysis through a single measure. Results indicate that the SWCC prediction methods yielding the lowest mean squared error did not necessarily yield the smallest error in the transient seepage analysis. Further, only the Rawls method consistently yielded conservative analysis results for all soil types investigated.en_US
dc.description.sponsorshipFlood and Coastal Storm Damage Reduction Research Program (U.S.)en_US
dc.language.isoenen_US
dc.publisherGeotechnical and Structures Laboratory (U.S.)en_US
dc.publisherEngineer Research and Development Center (U.S.)en_US
dc.relation.ispartofseriesERDC/GSL;SR-17-4-
dc.subjectSoil physicsen_US
dc.subjectSoil moistureen_US
dc.subjectTransient seepageen_US
dc.subjectSoil water retentionen_US
dc.subjectSoil water characteristic curveen_US
dc.subjectSoil infiltration rateen_US
dc.subjectSoil matric potentialen_US
dc.subjectSeepageen_US
dc.titleSWCC prediction : Seep/W add-In functionsen_US
dc.typeReporten_US
Appears in Collections:Special Report

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