Analysis of the Influence Characteristics of the Support Stability of a Fully Mechanized Coal Mining Face under the Hard Roof Mining Pressure

Table 2

Stress-strain relation of rock mass in the double-yield model goaf.

Strain	Stress (MPa)	Strain	Stress (MPa)	Strain	Stress (MPa)
0.01	0.37	0.07	4.00	0.13	15.9
0.02	0.79	0.08	5.01	0.14	21.2
0.03	1.26	0.09	6.25	0.15	29.7
0.04	1.80	0.10	7.79	0.16	45.7
0.05	2.42	0.11	9.75	0.17	87.5
0.06	3.15	0.12	12.3