Stress Evolution Mechanism and Control Technology for Reversing Mining and Excavation under Mining-Induced Dynamic Pressure in Deep Mine

Table 1

Rock distribution and mechanical parameters.

Serial	Lithology	Thickness (m)	Density (kg/m^3)	Bulk modulus (GPa)	Shear modulus (GPa)	Cohesion (MPa)	Friction (°)	Tensile strength (MPa)
12	Sandy mudstone	1	2,500	3.6	1.89	1.35	29	6
11	Mudstone	6	2,400	2.88	1.53	1.17	26	4
10	Sandy mudstone	8	2,500	3.6	1.89	1.35	29	6
9	Mudstone	4	2,400	2.88	1.53	1.17	26	4
8	Sandstone	5	2,700	10.35	7.74	3.15	36	5
7	Mudstone	3	2,400	2.88	1.53	1.17	26	4
6	Coal	2.5	1,400	1.35	0.63	1.17	26	2
5	Sandy mudstone	2	2,500	3.6	1.89	1.35	29	6
4	Mudstone	2	2,400	2.88	1.53	1.17	26	4
3	Sandston	3.5	2,700	10.35	7.74	3.15	36	5
2	Mudstone	2	2,400	2.88	1.53	1.17	26	4
1	Sandston	36	2,700	10.35	7.74	3.15	36	5