Shearing Performance of Lime-Reinforced Iron Tailing Powder Based on Energy Dissipation

Table 3

BP neural network fitting results.

Lime dosage (%)	Normal stress (kPa)	C1	C2	C3	C4	C5	C6	C7	Average relative error
0	100	−49.93	0.0023	−9.71	727324	0.00077	7.87	−727051	0.03
	200	−19.77	0.0055	−29.97	−4557279	−0.00091	−9.36	399	0.06
	300	−14.06	0.0033	−17.77	317668	0.00037	6.33	−317062	0.05
	400	24.61	−0.0062	34.9	−38062	−0.00067	−3.79	823	0.02
2	100	101.72	−0.0041	16.19	427.	0.002	−1.82	−168	0.06
	200	−319	0.0013	−6.87	660	0.0022	−2.31	−64	0.05
	300	143	−0.0047	17.77	−965	−0.0024	1.78	668	0.02
	400	121	−0.0031	10.99	−2121805	−0.00077	−7.68	863	0.05
4	100	125	−0.0075	20.69	−2002	−0.0021	−1.16	327	0.02
	200	57.6	−0.0054	14.85	756	0.0044	−1.48	−236	0.12
	300	634	0.0019	−1.23	458	0.0095	−1.54	−240	0.01
	400	152.46	−0.0036	11.99	−1363	−0.0031	1.16	863	0.01
8	100	−243	0.0018	−3.41	−571	−0.0031	3.48	581	0.09
	200	−537	−0.0013	1.41	−134	−0.0067	3.18	572	0.08
	300	−70.42	0.0055	−19.89	331411	0.00075	5.78	−330411	0.03
	400	−1162	0.00088	−3.73	89179	0.0003	3.69	−86966	0.06
10	100	587	0.0015	−0.68	−24.39	−0.023	17.96	−181	0.03
	200	533	0.0012	−1.5	183	0.0046	−3.28	−103	0.04
	300	−1350	−0.0011	1.06	−86.05	−0.013	7.37	1086	0.03
	400	−356	−0.0023	6.55	−942	−0.002	1.91	1173	0.03