Influencing Factors’ Analysis of Disturbance Degree of Key Stratum Based on the Response Surface Method

Table 4

Response surface calculation results.

Scheme number	Input			Output
	Mining height (M)	Buried depth (D)	Interlayer spacing (H)	KSDD (φ) (soft)	KSDD (φ) (medium)	KSDD (φ) (hard)
1	1	700	40	7.152	4.421	1.286
2	3	700	20	8.175	5.054	1.470
3	1	300	40	7.106	4.393	1.278
4	3	300	60	7.117	4.400	1.280
5	3	500	40	7.246	4.479	1.303
6	5	500	60	7.200	4.451	1.295
7	3	500	40	7.246	4.479	1.303
8	1	500	20	7.306	4.517	1.314
9	3	700	60	7.179	4.438	1.291
10	3	500	40	7.246	4.479	1.303
11	1	500	60	7.097	4.387	1.276
12	5	500	20	8.426	5.209	1.515
13	5	700	40	7.493	4.632	1.347
14	3	500	40	7.246	4.479	1.303
15	5	300	40	7.246	4.479	1.303
16	3	500	40	7.246	4.479	1.303
17	3	300	20	7.506	4.640	1.350