Deformation Characteristics and Control Technology of Roadway in Water-Rich Soft Rock

Table 1

Main rock parameters of main strata in the model.

Strata	Tensile strength; (MPa)	Shear modulus (GPa)	Bulk modulus; (GPa)	Cohesion; (MPa)	Friction angle; (°)
Overlying strata	0.55	3.66	5.31	1.43	41
Medium-fine sandstone	0.85	3.55	5.32	2.7	43
5 coal seam	0.23	1.45	4.97	0.68	24
Argillaceous siltstone	0.31	1.52	3.38	1.5	27
Fine sandstone	0.75	3.46	5.11	3.08	33