Study on Mechanical Properties and Control Technology of Surrounding Rock in the Fracture Zone of a Roadway

Table 2

Physical and mechanical parameters of each specimen.

Name	No.	Mass (g)	Length (mm)	Diameter (mm)	Compressive strength (MPa)	Elastic modulus (GPa)	Poisson’s ratio
Silty mudstone	A1	433.7	101.0	49.4	14.516	1.416	0.191
	A2	433.2	101.5	49.4	12.737	1.373	0.024
	A3	432.1	102.6	49.4	14.322	1.655	0.199
Sand-mudstone interlayer	B1	456.3	107.7	49.4	12.726	1.376	0.098
	B2	429.2	102.2	49.4	11.334	1.618	0.075
	B3	424.8	101.1	49.4	12.782	1.615	0.103
Fine sandstone	C1	465.3	97.1	49.3	76.442	7.195	0.13
	C2	474.5	100.0	49.4	71.928	6.173	0.306
	C3	476.1	100.1	49.5	74.244	6.841	0.263