Tension infiltrometer enhancements with automated pneumatic control and more durable base plate
نویسندگان
چکیده
منابع مشابه
Automated tension infiltrometer
An automated tension infiltrometer including a soil contacting base to which is mounted a porous plate for interfacing the infiltrometer with the soil to be analyzed. A Marriotte column is positioned in the base so that its open bottom end abuts the porous plate. A bubble tower is also positioned in the base and has a bubbling tube operatively connected between its interior and interior of the ...
متن کاملBase plate in bending and anchor bolts in tension
This paper describes the behaviour of the base plate in bending and the anchor bolts in tension, which are the major components of a base plate connection. An analytical model has been derived to predict the component characteristics – the resistance and the stiffness. A description is given of how the behaviour is influenced by contact between the base plate and the concrete surface. The prese...
متن کاملDetermining Soil Hydraulic Properties from Tension Infiltrometer Measurements: Fuzzy Regression
numerical instability can be problems. Therefore, the nonlinear least-squares regression method introduced Tension infiltrometer measurements have been used to measure by Logsdon and Jaynes (1993) has been widely used, steady-state infiltration rates at applied tensions. The measurements owing to its simplicity. They estimated saturated hycan be used to determined soil hydraulic properties thro...
متن کاملDouble-ring and Tension Infiltrometer Measurements of Hydraulic Conductivity and Mobile Soil Regions1
1. Article submitted on Sept./2010 and accepted for publishing on Aug./2011 (n° PAT 11376/ DOI: 10.5216/pat.v41i3.11376). 2. Helmholtz Centre for Environmental Research (UFZ), Department of Soil Physics, Halle, Germany. E-mail: [email protected]. 3. Universidade Federal de Goiás, Escola de Agronomia e Engenharia de Alimentos, Goiânia, GO, Brazil. E-mail: [email protected]. 4. Martin-Luther...
متن کاملMacroporosity and infiltration in blanket peat: the implications of tension disc infiltrometer measurements
Little is known about the processes of infiltration and water movement in the upper layers of blanket peat. A tension infiltrometer was used to measure hydraulic conductivity in a blanket peat in the North Pennines, England. Measurements were taken from the surface down to 20 cm in depth for peat under four different vegetation covers. It was found that macropore flow is a significant pathway f...
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ژورنال
عنوان ژورنال: Water Resources Research
سال: 2009
ISSN: 0043-1397
DOI: 10.1029/2008wr007075