Back-Analysis of Parameters of Jointed Surrounding Rock of Metro Station Based on Random Forest Algorithm Optimized by Cuckoo Search Algorithm

Table 2

Orthogonal design scheme.

NO.	Jcoh (MP)	Jdila (°)	Jfric(°)	Jten (MPa)	Jdd (°)	Jdip (°)	AZ	BZ	CZ	DZ	P1(kPa)	P2(kPa)
1	0.12	15	10	0.03	186	27	22.59	3.06	20.37	5.51	180.5	140.3
2	0.12	20	15	0.05	176	25	18.00	7.70	15.6	5.57	180.5	133.4
3	0.12	25	20	0.07	166	23	17.23	8.31	14.32	5.87	156.9	141.3
4	0.12	30	25	0.09	156	21	17.40	8.61	14.07	6.04	161.2	128.9
5	0.12	35	30	0.11	146	19	17.66	8.88	13.98	6.30	165.6	117.8
6	0.22	15	15	0.07	156	19	17.78	8.43	14.52	5.88	157.3	119.9
7	0.22	20	20	0.09	146	27	18.29	9.00	14.63	6.66	158	68.8
8	0.22	25	25	0.11	186	25	16.47	8.00	14.27	5.54	147.5	162.8
9	0.22	30	30	0.03	176	23	16.41	7.98	13.74	5.54	140.6	143.9
10	0.22	35	10	0.05	166	21	16.95	8.55	13.97	5.93	148.3	147.6
11	0.32	15	20	0.11	176	21	16.51	7.84	13.58	5.42	70.4	146.4
12	0.32	20	25	0.03	166	19	15.59	7.84	13.79	5.3	56.4	183.9
13	0.32	25	30	0.05	156	27	15.38	7.98	13.06	5.42	149.8	148.9
14	0.32	30	10	0.07	146	25	17.94	9.03	14.04	6.51	148	91.6
15	0.32	35	15	0.09	186	23	16.07	7.99	14.05	5.58	124.2	150.1
16	0.42	15	25	0.05	146	23	16.90	8.31	14.19	6.61	131	31.8
17	0.42	20	30	0.07	186	21	14.21	7.39	11.2	5.27	147.5	65.5
18	0.42	25	10	0.09	176	19	15.21	7.66	13.37	5.36	36.6	197.6
19	0.42	30	15	0.11	166	27	14.59	7.64	11.81	5.33	155.6	83.4
20	0.42	35	20	0.03	156	25	14.61	7.82	11.84	5.34	156.6	215.4
21	0.52	15	30	0.09	166	25	14.21	7.39	11.19	5.27	147.7	65.5
22	0.52	20	10	0.11	156	23	14.67	7.78	11.88	5.24	148	60.4
23	0.52	25	15	0.03	146	21	14.69	7.91	11.97	5.24	148.4	59.5
24	0.52	30	20	0.05	186	19	14.22	7.39	11.2	5.28	147.5	65.7
25	0.52	35	25	0.07	176	27	14.21	7.39	11.19	5.27	147.6	65.5