Moment Tensor Analysis of Acoustic Emissions for Cracking Mechanisms During Schist Strain Burst

• Published in: Rock mechanics and rock engineering Vol. 53; no. 1; pp. 153 - 170
• Main Authors: Ren, Fuqiang, Zhu, Chun, He, Manchao
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.01.2020; Springer Nature B.V
• Subjects: Acoustic emission; Burst tests; Civil Engineering; Compression; Compression tests; Cracking (fracturing); Cracks; Damage assessment; Earth and Environmental Science; Earth Sciences; Ejection; Emission analysis; Fracture mechanics; Geophysics/Geodesy; Mathematical analysis; Microcracks; Original Paper; Ratios; Schist; Schists; Shear; Shearing; Strain burst; Tensor analysis; Tensors; Unloading; Damage evolution; AE location; Schist; Strain burst; Moment tensor

Acoustic emission (AE) location technique and moment tensor analysis were used to evaluate the temporal–spatial evolution and damage of micro-cracks of schist during true triaxial compression and strain burst tests. The results show that the AE locations coincide with the macroscopic cracks for true...