Experimental Investigation on the Influence of Water Content on the Mechanical Properties of Coal under Conventional Triaxial Compression

Table 2

Mechanical parameters of specimens under uniaxial compression.

Specimen no.	Water content %		Uniaxial strength (MPa)	Elastic modulus (GPa)	Average strength loss rate %	Average elastic modulus loss rate %
	Designed	Real
DC-1	0	0	28.9	3.4	0	0
DC-2		0	32.9	3.0
DC-3		0	29.5	3.3
Average		0	30.4	3.3
WC1-1	1.80	1.78	19.5	2.6	30	21.5
WC1-2		1.69	22.3	2.5
WC1-3		1.71	22.2	2.6
Average		1.73	21.3	2.6
WC2-1	3.60	3.51	14.8	1.9	48.3	37.6
WC2-2		3.62	16.6	2.2
Average		3.57	15.7	2.0