Mechanisms of Floor Heave in Roadways Adjacent to a Goaf Caused by the Fracturing of a Competent Roof and Controlling Technology

Table 2

Cap pressures for the double-yield model.

Strain (m/m)	Stress (MPa)	Strain (m/m)	Stress (MPa)
0.01	0.22	0.11	4.95
0.02	0.47	0.12	6.00
0.03	0.75	0.13	7.31
0.04	1.06	0.14	9.00
0.05	1.41	0.15	11.25
0.06	1.80	0.16	14.39
0.07	2.25	0.17	19.12
0.08	2.77	0.18	27.00
0.09	3.37	0.19	42.73
0.10	4.09	0.20	90.00