Mechanical Properties and Failure Modes of Thick-Walled Cylinder Granites with Different Apertures under Triaxial Compression

Table 5

The value of m in the specimen with an aperture of 20 mm.

(r − r0)/(R − r0)		1	1/2	1/3	1/4	1/5	1/6	1/7	1/8	1/9	1/10
σ 3	σ 1	m
5	195.6	8.4269	8.4266	8.4262	8.4255	8.4245	8.4228	8.4197	8.4131	8.3944	8.3002
10	220.4	8.4901	8.4895	8.4887	8.4875	8.4856	8.4825	8.4767	8.4645	8.4303	8.3551
15	248.3	8.5666	8.5658	8.5647	8.5630	8.5605	8.5562	5485	8.5320	8.4860	8.3710
20	280.5	8.6206	8.6196	8.6181	8.6160	8.6128	8.6075	8.5977	8.5769	8.5194	8.3859
30	336.2	8.6733	8.6715	8.6689	8.6652	8.6594	8.6499	8.6326	8.5959	8.4959	8.4135
40	300.7	8.8135	8.8107	8.8070	8.8015	8.7931	8.7791	8.7537	8.7000	8.5550	8.4421
Average of m		8.5985	8.5972	8.5956	8.5931	8.5893	8.5830	8.5715	8.5471	8.4802	8.3779
Variance of m		0.9728	0.9723	0.9716	0.9706	0.9688	0.9657	0.9588	0.9371	0.7405	0.4746