Study on Acoustic Emission Characteristics and Damage Evolution Law of Shale under Uniaxial Compression

Table 1

Mechanical parameters under uniaxial compression of shale.

Specimen number	Diameter (cm)	Length (cm)	Sampling direction (-)	Compressive strength (MPa)	Peak axial strain (%)	Poisson’s ratio (-)
PS-0-1	48.92	99.46	Parallel bedding	27.51	0.51	0.28
PS-0-2	48.9	99.08	Parallel bedding	40.13	0.59
PS-0-3	48.92	99.09	Parallel bedding	41.24	0.61