Experimental Study on Sedimentary Rock’s Dynamic Characteristics under Creep State Using a New Type of Testing Equipment

Table 2

Actual static stressin each level.

	Stress level; 1	Stress level; 2	Stress level; 3	Stress level; 4	Stress level; 5	Stress level; 6
Load application (MPa)	56.5	59.8	64.1	66.8	70	79.6
Ratio to long-term strength (%)	80.1%	84.8%	90.9%	94.7%	99.3%	112.9%
Ratio to ultimate strength (%)	68.9%	72.9%	78.2%	81.5%	85.4%	97.1%
Single impact load (MPa)	0.23/0.49	0.23/0.49	0.23/0.49	0.23/0.49	0.23/0.49	0.23/0.49