A unique feature of the University of Kentucky soil bin enables deformation to be characterized by studying a cross-sectional soil profile grid pattern. Modular sections of the bin are laterally removed to expose the cross-section after passes of a pneumatic tire.
The measured displacements of the grid points were converted to values of volumetric strain and then compared to soil density as measured by a dual probe gamma-ray density gauge following tests at various soil conditions. Final soil bulk density determinations using the two methods were not statistically different..
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The work was funded in part by a grant from the University of Kentucky Institute for Mining and Minerals Research.
This research was conducted in conjunction with a project of the Kentucky Agricultural Experiment Station and is published with the approval of the Director as paper no. 85-2-14.
Wood, Randall K. and Wells, Larry G., "Characterizing Soil Deformation by Direct Measurement Within the Profile" (1985). Biosystems and Agricultural Engineering Faculty Publications. 186.