Journal Published Online: 31 August 2005
Volume 28, Issue 6

Combined TDR and P-Wave Velocity Measurements for the Determination of In Situ Soil Density—Experimental Study



This paper summarizes a new nondestructive approach for the evaluation of soil density and water content. This new measurement methodology involves evaluating the dielectric permittivity and the P-wave velocity in soils as the water content is increased. These values are then related to the volumetric water content, porosity, and skeleton shear stiffness, which are needed to back-calculate the density and water content of the tested soil specimens. Experimental laboratory results are briefly summarized. These test results show a potential for developing a new device. Electronic equipment and sensors for the proposed device include a TDR system, miniature piezoelectric accelerometers, signal conditioner system, and oscilloscope for data acquisition.

Author Information

Fratta, D
University of Wisconsin-Madison, Madison, WI
Alshibli, KA
Louisiana State University and Southern University, Baton Rouge, LA
Tanner, WM
Nova Geotechnical and Environmental, Kennesaw, GA
Roussel, L
Louisiana State University, Baton Rouge, LA
Pages: 11
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Stock #: GTJ12293
ISSN: 0149-6115
DOI: 10.1520/GTJ12293