Evolution Law of Coal Seam Abutment Pressure under the Influence of Shallow Buried Complex Strata: A Case Study

Table 5

Rheological model parameters.

Parameter	Elastic modulus (MPa)		Viscosity coefficient (109 (Pa/year))
	M model (E1)	K model (E2)	M model (η1)	K model (η2)
Value	2536.9	6410.8	37.0	11.3