A Comparison of Five Different Techniques to Determine Hydraulic Conductivity of a Riparian Soil in North Bavaria, Germany
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2023, Environmental AdvancesField-saturated hydraulic conductivity estimated using class numbers of soil survey
2021, CatenaCitation Excerpt :The disk- and the hood-infiltrometer apply preferably for the uppermost topsoil or require laborious soil pit preparation (Buczko et al., 2003). In contrast, the borehole permeameter is measuring the field-saturated hydraulic conductivity (Kfs-value) of the surrounding soil from a small borehole (Amoozegar, 1989), which can be easily extended downward and thus allows measurements also in greater soil depths (Hangen and Vieten, 2018). The Kfs-value, the hydraulic conductivity of a field-saturated soil, does not necessarily comprise the entire macropore region (Jury and Horton, 2004) and may additionally be decreased by enclosed air during the infiltration process (Basile et al., 2003; Morbidelli et al., 2017).
Examination of models for determining saturated hydraulic conductivity by the constant head well permeameter method
2020, Soil and Tillage ResearchCitation Excerpt :Under saturated conditions, this parameter is referred to as saturated hydraulic conductivity, Ks (also denoted as Ksat), and can be taken as a constant at any given time, location, and direction within the soil. The most convenient and widely used procedure for in situ measurement of Ks of the vadose zone from the soil surface to depths exceeding a few meters is the constant head well permeameter (also known as borehole permeameter) method (Amoozegar and Wilson, 1999; Reynolds and Elrick, 2002; Braud et al., 2017; Hangen and Vieten, 2018; Libohova et al., 2018). Originally, the procedure called for excavation of a relatively large hole (around 30 cm in diameter), required a significant volume of water (>200 L), and took a long time (>10 h) to complete a test (Amoozegar and Warrick, 1986; Stephens et al., 1987; USBR, 1990).
Assessment of the Applicability of a Constant-Head Borehole Permeameter Test to River Levees
2024, Geotechnical Testing Journal