ty -jour a2 -Abdul Samad，Abdul Aziz bin au -ding，Xin au -Xiao，Xiao -chun au -lv，xiang -feng au -wu -wu，di au -pan，yishan pan，yishan py -2020 da -2020/04/02-2020/04/02TI-基于煤层裂缝SP的分形特征-8745039 VL -2020 AB -Rock Burst是一场灾难性的动态灾难，对声发射和电荷信号之间的相似性和差异分析，这是由煤的突然失败和不稳定造成的灾难性动态灾难，这给煤炭带来了深层煤炭的威胁矿业;AE-Charge信号和碎片分布与煤炭的机械性能和灾难的机械性能有关。因此，应深入研究煤炭破坏期间AE和电荷诱导的变化，煤炭碎片的分形特征及其关系。在本文中，对煤炭进行了单轴载荷测试，该煤炭由中国东北东北Tiefa Coal Group的小米深度的块状块产生的爆发趋势样品进行；使用统计分形法获得了样品的分形特性。通过使用加载实验和理论分析研究了声发射和电荷信号之间相似性和差异的力学。发现煤的碎片具有良好的自相似性能。样品的分形尺寸在2.085–2.521范围内，最大范围为2.300–2.468，略高于岩石。 The high-amplitude pulses of the acoustic emission and charge are concentrated in the macroscopic fissure development and expansion stage but they have asynchronous characteristics between them. The charge generation process is accompanied by the inhomogeneous deformation and sliding friction; the friction slip is the major one and is analysed theoretically. A theoretical model for the force-electric coupling relationship is established. The statistical results show that both the acoustic emission and the charge signal accumulation have a significantly proportional relationship with the fractal dimension. Both the acoustic emission and charge signal reveal coal breakage evolution process, which will help in obtaining the precursor information on coal failure. Furthermore, the monitoring results can predict the extent of coal mass instability. SN - 1687-8086 UR - https://doi.org/10.1155/2020/8745039 DO - 10.1155/2020/8745039 JF - Advances in Civil Engineering PB - Hindawi KW - ER -