The development of wet cohesive soils at negative temperatures leads to soil freezing to the working bodies of earth-moving machines, which leads to a decrease in the useful volume of buckets and, consequently, to a decrease in the productivity of the machine. This article discusses the thermal effect on the simulator of the working body of an earth-moving machine. As a heat source, a tape heating element was used, namely, a carbon heating flexible tape. The technical characteristics of this heating tape and its technical device are presented. The results of experimental studies of the heating of the ladle simulator are presented and the temperature-time characteristics of the heating tape are constructed. The one-factor regression equations for the heating temperature of the bucket simulator at different ambient temperatures are presented. Research has been carried out on the effect of heating the bucket simulator by the heating tape belt on the soil shear force.

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The development of moist cohesive soils in conditions of negative temperatures leads to a decrease in the productivity of earth-moving machines due to the increase in adhesion and friction. When wet soil and a metal bucket interact, the soil freezes to the sides of the bucket, which leads to a decrease in the useful volume of the bucket and, therefore, to a decrease in the productivity of the machine. The experimental studies have been carried out on the effect of the intermediate layer at the interface between the soil and the working body of the machine, on adhesion. The prophylactic lubricant "Niogrin" was used as an intermediate layer. As a result of processing the obtained experimental data, a regression equation was obtained; the dependence of the soil shear stress on various factors is presented and the influence of external factors on the adhesion of soils at negative temperatures is estimated. The comparison of the obtained dependencies showed that the strength of soil freezing when using a preventive liquid decreases 1.5-2 times.

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