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自从证明岩石中的声发射(AE)频幅关系与地震一样遵从吉登堡-李希特公式(Mogi,1962)以来,声发射实验研究在地震界得到了重视,人们对 AE 在时域、频域以及不同材料、不同应力过程中的活动特征作了广泛深入的研究,但是对 AE 空间分布的研究一直还处于探索阶段,其原因在于 AE 空间定位技术比较复杂,难于掌握。在实验室内实现 AE 定位,将有助于对变形局部化、裂纹扩展过程、先存构造格架对微破裂空间分布的影响等方面的研究。
Acoustic emission experimental studies have received much attention in the seismic field since it was demonstrated that the acoustic emission (AE) frequency relationship in rocks follows the Gutenberg-Liecht formula (Mogi, 1962) Frequency domain, and different materials and different stress processes. However, the research on the spatial distribution of AE is still in the exploratory stage. The reason is that AE spatial location technology is complex and difficult to master. Achieving AE positioning in the laboratory will help to study the effects of deformation localization, crack propagation, and preexisting tectonic framework on the spatial distribution of micro-fractures.