Study of the Fracture Law of Overlying Strata under Water Based on the Flow-Stress-Damage Model

Table 2

Model parameters.

Index	Parameter
Geometric similarity parameter	200 : 1
Thickness of coal seam (m)	0.03
Time similarity parameter	: 1
Unit weight similarity parameter	1 : 1
Stress similarity parameter	200 : 1
Elastic modulus similarity parameter	200 : 1