Acoustic Emission Characteristics of Compressive Deformation and Failure of Siltstone under Different Water Contents

Table 2

Mechanical parameters of specimens.

Specimen number	Water content/%	State	Compressive strength/MPa	Mean value/MPa	Elasticity modulus/GPa	Mean value/GPa	Failure time/s	Mean value/s
G-1	0.00	Dry	69.7	69.7	7.2	8.7	420	428
G-2	0.00		71.3		8.9		462
G-3	0.00		68.2		9.9		403
Z-1	1.56	Natural	37.0	36.4	5.1	4.7	502	532
Z-2	1.43		36.2		4.7		580
Z-3	1.57		35.9		4.4		515
B-1	4.12	Saturated	24.2	21.8	3.0	2.9	562	549
B-2	3.81		22.9		3.0		497
B-3	4.02		18.2		2.6		588