Subsidence Control Design Method and Application to Backfill-Strip Mining Technology

Table 2

Predicted parameters of PIM in the case of the first mining.

Mining depth (m)	Q	b	Tan β	θ (°)	S (H)
300–500	0.62	0.3	1.8	85.2	0.08
550–1000	0.58	0.3	1.74