Coupling Analysis of Water Injection Softening-Precursor Information Prediction of Coal-Rock Mass Based on Energy Conduction

Table 2

Average mechanical parameters of coal samples under different water injection softening measures.

The corresponding working conditions	Sample state	Processing state	Sample number	Average peak strength (MPa)	Average peak strain	Average elastic modulus (GPa)
Blank experiment	Natural state	Blank untreated	C0-1,2,3	21.33	0.02531	1.81
Water injection softening	Dry state	Complete drying	C1-1,2,3	34.72	0.03618	4.25
	Saturated state	Fully saturated	C2-1,2,3	19.16	0.02791	1.09