Research on the Development Mechanism of Postpeak Cracks in Sandstone under Different Confining Pressures

Table 2

Fitting parameters of cracks-area distribution under different stress level for post-peak sandstone.

Parameter	Confining pressure			Confining pressure			Confining pressure
	2MPa			2.5MPa			3MPa
	A	B	C	A	B	C	A	B	C
	0.012	0.047	0.075	0.007	0.021	0.031	0.002	0.039	0.03
	0.614	0.677	0.755	0.555	0.507	0.459	0.473	0.52	0.375
	1.668	1.32	1.025	2.108	2.373	2.686	2.925	2.277	3.607