Study on Long-Term Dynamic Mechanical Properties and Degradation Law of Sandstone under Freeze-Thaw Cycle

Table 2

Stress peaks of sandstone specimens under different impact pressures.

Impact pressure (MPa)	Number of freeze-thaw cycles
	0	20	40	80	120
0.04	65	50	42	34	17
0.055	112	91	78	57	42
0.07	200	185	161	121	111