Burst Failure Characteristics and Energy Evolution Law of Coal with Prefabricated Cracks at Different Angles
Xiufeng Zhang,
Yueyong Han,
Yang Chen
et al.
Abstract:In order to study the influence of fissures on the burst tendency of coal, the test and numerical simulation of the burst tendency of coal with different burst angles were carried out. The evolution law of the burst tendency index of coal under the influence of burst angle was analyzed, and the mechanism of energy storage and release of coal under the influence of fissure angle was revealed. The results show that compared with the specimens without prefabricated cracks, the uniaxial compressive strength of the… Show more
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