Improving a technique to calculate strength of cylindrical rock samples in terms of uniaxial compression

Purpose is to improve analytical technique calculate strength of cylindrical rock samples taking into consideration standard horizontal stresses. Methods. Mathematical modeling sample breakage under the truncated-wedge destruction was performed stresses using four experimental characteristics (i.e. k being shear strength; f? and ? contact internal friction coefficients; ? elasticity modulus) as well comparing design with data obtained in process uniaxial compression. Findings. The makes it possible identify both maximum residual indicators properties which can be simply defined by experiment. Comparison limits data, terms compression, supports idea high efficiency proposed technique. Originality. For first time, has been parameters. Practical implications. advantage apply promptly calculation results context industrial enterprises since their environment helps simple procedures define indices physi?omechanical rocks for determination stability underground structures reduction energy consumption while disintegrating open pits mining processing complexes.