Then it can be deduce that 50 amplitudes of cyclic loads could reduce uniaxial compressive strength of weathered granite up to 15 average. An electrohydraulic servo controlled mts apparatus with a constant axial displacement loading at a constant displacement rate of 0 001 mm s was used to perform uniaxial compression tests on granite samples. A comparison study deep learning based classification of rock structure of tunnel face tunneling and deep excavations in spatially variable soil and rock masses slope failure incidents and other stability concerns in surface lignite mines in greece some challenges of deep mining.
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