Fig. 1. Sketch of interactions of 
a roller with the soil. 
Fig. 2. General indicator of the 
physical-mechanical pro- 
perties for a soil: 
W = 202% 
y = 0.4 - 1.4 g/cm? 
Fig. 3. Modulus of deformation for 
soil: 
W = 20% 
y = 0.4 - 1.4 g/cm? 
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