The large-scale use of conveyor belts in coal mines is of special importance in safety considerations.In the operation of rubber cable conveyor belts, the cable base becomes damaged, reducing the belt strength.Studies of d-m-ge and the effect on strength characteristics of conveyor belts, and development of standards of admissible wear and tear, are essential for reducing hazard and increasing belt service life.A rubber cable conveyor belt is a thin plate reinforced by densely placed lengthwise cables.The bonding material is rubber, which has a lower hardness comprable to that of the cable.The theoretical basis for calculatlon of such a lamlnated structure has been developed in [1][2][3].The calculation of the stressed state for a d--umged rubber cable conveyor belt is described in [4].Of the more recent publications, [5, 6] should be mentioned.The equations for the study of a stressed state of a d--mged rubber cable conveyor belt ( Fig. 1) are deduced on the basis of the following assumptions: (i) in each cable, a tensile stress Gi(y), kg/cm, arises which is variable lengthwise; (2) only the shear stress zi(y) , kg/cm, is considered in rubber layer; (3) the belt is in a plane stressed state. The shear strain in the rubber interlayer is found from the expression ~,,(y) _ vi+1(Y)--vi(~).(1) h where 71(Y) is shear strain; Vi(Y) is the elastic displacement along the cable, cm; and h is the width of the rubber interlayer, cm. Hooke's law assumes the formwhere E is the elasticity modulus of the cable, kg/cm2; D is the cable diameter, cm; and G is the rubber shear modulus, kg/cm~The equilibrium equations expressed in ter~s of displace~ents have (see, e.g., (2) and (3)) the following appearance: