Development of a new TDR probe for determining soil water content and dry density


Autoria(s): Esquivel, E. R.; Giacheti, H. L.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

27/05/2014

27/05/2014

18/09/2007

Resumo

A few traditional methods for determining water content in the field are either inaccurate or time consuming. As an alternative, the time domain reflectometry (TDR) technology has been used in the determination of the soil water content for geotechnical applications. This paper presents the preliminary results on the development of a new TDR probe for determining soil water content and dry density at different depths. This new probe is intended to be pushed into the ground using piezocone equipment. Different from the standard TDR probes with straight rods, the new probe consists of two parallel copper stripes coiled around a PVC-steel core. The probe diameter is the same as the standard 10 cm2 piezocone diameter. Through laboratory calibrations, it is possible to establish expressions relating the soil apparent dielectric constant and the bulk electrical conductivity with the gravimetric water content and the dry density. Copyright ASCE 2007.

Formato

18

Identificador

http://dx.doi.org/10.1061/40906(225)18

Geotechnical Special Publication, n. 162, p. 18-, 2007.

0895-0563

http://hdl.handle.net/11449/69888

10.1061/40906(225)18

2-s2.0-34548554272

Idioma(s)

eng

Relação

Geotechnical Special Publication

Direitos

closedAccess

Palavras-Chave #Calibration #Electric conductivity #Permittivity #Reflectometers #Soils #Time domain analysis #Dry density #Piezocone equipment #Probe diameter #Water content
Tipo

info:eu-repo/semantics/conferencePaper