American Society of Agricultural and Biological Engineers



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Soil Stress Residuals as Indicators of Soil Compaction

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  011063,  2001 ASAE Annual Meeting. @2001
Authors:   Reed Turner, Randy L. Raper
Keywords:   Soil, Soil Compaction, Ground Pressure, Sensors, Measurement, Tires, Inflation Pressure, Traction, Contact Area

Data from soil ground pressure sensors show that residual stress, or the net stress remaining after a vehicle has passed over the sensor, is proportional to peak stress or peak compaction force. This suggests a simple way to measure and compare soil compaction between different vehicles or treatments. This paper reviews two methods of measuring peak and residual soil stress, comparing results from a simple method to results from a more rigorous method, and reports the magnitude of the measured residual stress, and the relationships between residual stress, vehicle ground pressure and soil compactibility.