Defects and Improvement of Predicting Mine Water Inflow by Virtual Large Diameter Well Method

Table 3

Comparison between the DVLDWM calculation and actual observed results.

The excavated distance of the mining panel (m)	Mine water inflow (m^3/h)
	Calculation results	Actual observed results
15	5.19	3.1
30	5.41	3.5
45	5.91	3.4
60	6.43	4.0
75	6.92	4.8
90	7.42	6.9
105	8.50	8.4
120	8.28	7.0
135	8.78	8.5
150	9.16	8.7
165	10.43	8.4
180	10.79	7.0
195	11.17	10.1
210	11.62	11.1
225	12.07	10.4
…	…	…
390	18.65	16.2
405	19.11	24.8
420	19.58	19.1
435	19.88	19.3
450	20.36	19.1
465	20.83	19.0
480	21.29	21.0