Experimental Study on the Mechanical Properties and Seepage Characteristics of Red Sandstone with a Single Persistent Joint under Triaxial Compression

Table 6

Strength and deformation parameters of the specimens in triaxial compression drainage tests.

Specimen label	(MPa)	(10^-3)	(GPa)	(GPa)
SD-0°-10-4	113.22	10.79	11.40	10.48
SD-0°-10-8	108.27	9.62	12.31	11.66
SD-0°-20-4	186.13	15.25	14.36	14.36
SD-0°-20-8	152.12	12.34	13.95	10.62
SD-45°-10-4	45.10	5.06	11.03	10.16
SD-45°-10-8	21.22	2.74	9.04	8.50
SD-45°-20-4	63.14	6.26	12.88	14.15
SD-45°-20-8	33.99	4.20	11.84	13.55
SD-90°-10-4	126.84	9.11	15.66	14.66
SD-90°-10-8	131.37	13.60	13.64	10.67
SD-90°-20-4	187.31	16.31	20.13	14.54
SD-90°-20-8	185.23	15.68	16.61	14.68

Note: is the modulus of deformation, namely, the slope of the connection line between the point of the half peak strength and the origin in the stress-strain curve.