4 
We suggested a method of determining the deformation properties of the soil 
considering the speed of loading and its condition and it can find use when 
establishing parameters of soil working implements. 
LITERATURE 
1. Alekseev, N. A. Method of determining the dynamic characteristics of 
soil with large pressures. Symposium "Soil Dynamics", No. 44, Moscow, 
Gosstroitel', 1951. 
2. Berezantsev, V. G. Assymetric problem of the theory of limiting results 
of granular media. Moscow, Stroizdat, 1954. 
3. Lukanin, Yu. V. The linear deformation of soils. Scientific paper of 
the Faculty of Mechanization of Penzensk Agricultural Institute, Vyp. 
Beerenza., 196/. 
4. Meschyan, S. R. The influence of speed on the deformation properties 
| of viscous soils. Izvestiya Acad. Sci. USSR, Vol. 12, No. 4, 1959. i 
| 5. Meschyan, S. R. Creep of clay soils. "Science", Erevan, 1967. 
) 6. Rakhmatulin, Kh. A., et al. Problems of the dynamics of soils. M. G. U. 
| Publishing House, 1964. 
7. Kushnarev, A. S. Rheological model of the soil during the interaction 
on it of soil working implements. Problems of Mechanization of Agri- 
| culture. Vol. .1l/, Reports, Mimskh., 1971. 
8. Kushnarev, A. S., Kuz'min, V. L. The problem of determining the instan- 
taneous modulus of elasticity of soil. Report of the first scientific- 
technical conference on the problem, "The complexity of mechanization 
) of bringing stony soils into production." Erevan, 1965. 
9. Kushnarev, A. S., Baukov, A. V., Rozhkov, P. N. Use of methods of the 
theory of contact deformations during determining the pressure on the 
soil by the roller and nonpowered wheels of tractors and agricultural 
machines. Mimskh. Problems of the Mechanization of Agriculture. Issue 
2. “Melitolol, 1967. 
10. Kushnarev, A. S. Utilization of the rheology of soils for determining 
the optimum parameter of working tools of soil working machines. Scienti- 
fic article of Uskha. "Increasing the work capacity of parts of agri- 
cultural machines." K., 1971. 
Translated by William R. Gill 
Soil Scientist, USDA, ARS, SR 
National Tillage Machinery Laboratory | 
P. O. Box 792, Auburn, Alabama 36830 
ADSL Le Zo yl 1 
