Dynamic Brittle Instability Characteristics of 2000 m Deep Sandstone Influenced by Mineral Composition

Table 1

Deep sandstone sample number and size.

Experiment	Number	Length (mm)	Diameter (mm)
Uniaxial pressure experiment	S1—1	50.36	25.18
	S1—2	50.34	25.16
	S1—3	50.18	24.85
	S1—4	49.88	25.12
	S1—5	50.26	24.58
	S1—6	49.76	25.16
	S1—7	50.26	25.18
	S1—8	50.16	24.88
Brazil split test	Sm—1	50.20	50.16
	Sm—4	50.18	49.86
	Sm—5	50.12	50.18