Sensitivity Analysis in the Estimation of Mechanical Parameters of Engineering Rock Mass Based on the Hoek–Brown Criterion

Table 2

Results of triaxial compression tests of almond-shaped basalt.

σ3 (MPa)	σ1 (MPa)	(σ1–σ3) (MPa)	E (GPa)	ν
0	150	150	26	0.17
5	131	126	17	0.19
10	178	168	23	0.25
20	183	163	22	0.21
40	458	418	35	0.24