Study on the Settlement Mechanism with Effect of Backfilling Method of an Underground Mine

Table 2

Data comparison between the mathematical model calculation and numerical simulation results.

Influence factor	Parameter	Calculated value of the model (m)	Numerical simulation value (m)	Difference rate (%)
Mining depth	350 m	0.180	0.188	4.4
	450 m	0.233	0.261	12.0
	550 m	0.285	0.334	17.2
	660 m	0.337	0.456	35.3
Aspect ratio	3 : 1	0.100	0.127	27.0
	2 : 1	0.233	0.261	12.1
	1.5 : 1	0.310	0.289	-6.8
	1 : 1	0.370	0.317	-14.3
Roof thickness	5 m	0.378	0.296	-21.7
	8 m	0.296	0.280	-5.4
	10 m	0.233	0.261	12.0
	12 m	0.177	0.240	35.6
Elastic modulus	15 GPa	0.298	0.305	2.3
	30 GPa	0.233	0.261	12.0
	45 GPa	0.192	0.196	2.1
	60 GPa	0.160	0.145	-9.4

Note: