Method to Calculate Working Surface Abutment Pressure Based on Key Strata Theory

Table 2

Other parameters (apart from KS) in the method used to calculate abutment pressure.

N0 (MPa)	f	φ (°)	M (m)	δ	q0 (MPa)	L (m)
6.14	0.29	16	7	0.65	0.45	890