Table 2.

Simulated result for the total water inflow of the whole tunnel using different forecasting methods

Tunnel section (m)	Stable water inflow (m3/h)		Maximum water inflow (m3/h)
	Kostyakov method	Ochiai method	Qshima method
K0 ~ 115	4.3	4.5	4.6
K115 ~ 2000	71.5	85.2	90.3
K2000 ~ 2500	33.3	39.6	50.2
K2500 ~ 3316	41.8	51.1	59.5
K3316 ~ 4414	126.5	148.0	215.1
K4414 ~ 8265	345.5	424.2	566.7
K8265 ~ 12571	366.6	450.5	595.0
K12571 ~ 15152	210.6	255.0	337.0
K15152 ~ 16151	52.6	62.9	74.4
K16151 ~ 17290	56.7	66.0	77.2
Sum	1309.4	1586.9	2070.2