Study on Strength Damage Evolution Regulation of Sandstone under Cyclic Erosion

Table 4

Comparison between uniaxial compression test value and PFC2D simulation value.

Erosion cycle/T	Compressive strength test value ()/GPa	Simulation value of compressive strength ()/MPa	Relative error/%
0	50.42	54.31	7.71
5	41.93	41.027	-2.15
10	30.99	32.05	3.42
15	23.92	24.91	4.14
20	17.67	18.58	5.15
30	13.39	13.03	-2.68