Comparison of polarity and moment tensor inversion methods for source analysis of acoustic emission data

The spatial localization of the damage evolution caused by a fiber-reinforced backfill is critical for the prediction of the rupture location in a mining area filling. Acoustic emission (AE) three-dimensional localization tests under uniaxial compression were conducted on various fiber-reinforced backfills to study the damage evolution process. The general characteristics of energy count and the law of evolution for the spatial localization...