Experiment Study on the Mechanical Behavior and Acoustic Emission Response of Thick and Hard Sandstone Roof in Xinjiang Mining Area

Table 1

Uniaxial compression experimental results.

Specimen no.	Peak stress (MPa)	Peak strain	Elastic modulus (GPa)
S1	67.39	0.0185	7.83
S2	35.16	0.0175	7.77
S3	74.42	0.0197	8.05
Average	68.99	0.0186	7.88