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对受载煤体破裂过程中的声发射(AE)信号进行了测定和分析.研究结果表明,受载煤岩体的变形破裂及声发射信号并不连续,而是阵发性的.声发射信号符合赫斯特(RS)统计规律.在受载煤岩体的破裂过程中,声发射信号基本呈现逐渐增强趋势,这对于预测预报煤岩灾害动力现象有重要的意义.
Acoustic emission (AE) signals during the rupture of the loaded coal were measured and analyzed. The results show that the deformation and fracture of the loaded coal and rock mass and the acoustic emission signal are not continuous, but paroxysmal. Acoustic emission signal in line with Hurst (RS) statistical rules. During the rupture of the loaded coal and rock mass, the acoustic emission signal basically shows a gradual increasing trend, which is of great significance for predicting the dynamic phenomenon of coal and rock disasters.