THE HIGH-FREQUENCY FATIGUE CHARACTERISTICS OF ROCK WITH CRACKS

In this paper, high-strength white cement is adopted as the experimental material for simulating rocks, and high-frequency fatigue uniaxial compression tests of rock specimen with different number of cracks are conducted. Considering the influence of cracks on the mechanical properties of specimens, the crack extension mechanism is investigated, while the S-lgN curves and the fatigue equation for the rock specimens are obtained.