Changes in the rheological properties and density of a loamy sandy soddy-podzolic soil under the impact of a wheel tractor
2013
Zolotarevskaya, D. I.
Theoretical investigations and field tests have revealed the tendencies of the rheological properties and density of a loamy sandy soddy-podzolic soil under the impact of a wheel tractor. The rheological properties of the soil in the viscoelastic state have been described by a differential equation of the first order relating the compressive stresses with the variation rates of the compressive stresses and the relative vertical compressive deformation. The effect of the dynamic loads at the vertical vibration of a wheel tractor has been mathematically simulated. A method has been proposed for calculating the rheological properties and the soil compaction parameters under a running tractor that considers the effect of the variations of the dynamic load on the soil. Software products have been developed to implement this method. The effect of the main factors on the rheological properties of the soil and its compaction parameters under the impact of a tractor has been quantified.
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