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University of Arizona (1973)

RAIN ERODIBILITY OF COMPACTED SOILS

El-Rousstom, Abdul Karim

Titre : RAIN ERODIBILITY OF COMPACTED SOILS

Auteur : El-Rousstom, Abdul Karim

Université de soutenance : University of Arizona

Grade : Doctor of Philosophy (PhD) 1973

Résumé
The effects of different independent variables on the magnitude of soil erosion caused by rainfall were investigated. Ten variables are included in this study : slope inclination, rain intensity, grain size distribution, water content and dry density, compactive effort, method of compaction, curing conditions, temperature at testing, plasticity, and sample length exposed to runoff. Three approaches are used to compare the amount of erosion. First, variables are plotted in relation to erosion ; second, complete comprehensive tables relating these variables to erosion are presented. Third, erosion is related to combined variables of quantitative values such as slope steepness and rain intensity, using multi linear regression formulas that show the degree of signifi cance of each of the variables. For qualitative variables, such as method of compaction, a direct comparison by the use of tables and graphs is presented.

Mots clés : Soil erosion — Climatic factors. ; Soil stabilization.

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