Study on the Stability of the Coal Seam Floor above a Confined Aquifer Using the Structural System Reliability Method

Table 1

Statistics of the random variables in the synthetic case.

Parameters	σkt/MPa	ck/MPa	φk/(°)	c/MPa	φ/(°)	k0	Ek GPa	hc (m)
	13.5	14	38	7.0	34	1.0	17	12
	0.9	1.5	3.5	0.9	2.9	0.5	1.0	1.5
	0.067	0.107	0.092	0.129	0.085	0.500	0.059	0.125