Quantitative Study on the Stress Distribution Characteristics of Coal Rock with Faults

Table 1

Mechanical properties of rock masses.

Lithology	Elastic modulus (GPa)	Poisson ratio	Cohesion (MPa)	Internal friction angle (°)	Density (kg·m^−3)	Thickness (m)
Sandstone	14.14	0.25	7.00	37.8	2560	38
Mudstone 1	2.73	0.29	7.21	37.4	2660	6
Coal	1.20	0.35	1.50	32.0	1440	3
Mudstone 2	2.34	0.29	5.74	38.2	2740	4
Limestone	12.91	0.25	6.55	39.1	2619	49
Fault	0.3	0.35	—	—	1800	2