Elastoplastic Analysis of Circular Opening Based on a New Strain-Softening Constitutive Model and Its Engineering Application in Hydraulic Fracturing

Table 4

The critical hydraulic pressure under different load-bearing coefficients.

State		(MPa)	(MPa)	(MPa)
Expansion		12.039	14.084	15.986
		12.039	13.128	15.235
		12.039	12.603	14.836
		12.039	12.097	14.461