APPROFONDIMENTI SU ALCUNE TECNICHEINFILTROMETRICHE PER LA MISURA DELLA CONDUCIBILITÀIDRAULICA DEL SUOLO SATURO

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

[automatically translated] In the memory are covered some aspects of the measure in the field of soil saturated hydraulic conductivity, Kfs with infiltrometriche techniques. First, it was determined the frequency of failures with a type test Two- Ponding-Depth infiltrometer done with the single-loop (PI). The above rate was higher in two Franco-clayey soils (40%) than in a sandy loam (25%). A high initial water content has been a possible cause of the failure of the measure. The exclusion from the data set of tests which provided the values of the parameter  * falling outside the range 1-100 m-1 is found to be irrelevant only in the case where the quantity of interest is the mean value of Kfs and  *. For a Franco-clay soil, the transient technique SFH (Simplified Falling Head) has provided an average value of Kfs not significantly different from that obtained with the most challenging stationary technique, confirmation of interest at the application of a simple transitional approach. The combined use of SFH and PI techniques may prove useful in determining the hydrological response of an area in the early and advanced stages of a process of infiltration in the presence of free water on the surface.
Original languageItalian
Title of host publicationAtti del XXXII Convegno Nazionale di Idraulica e Costruzioni Idrauliche, Palermo 14-17 settembre 2010
Pages1-384
Number of pages384
Publication statusPublished - 2010

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