Table 4 Classification of risk of indicators of water inrush.

From: Risk assessment of karst water inrush in tunnel engineering based on improved game theory and uncertainty measure theory

Tunnel section

Rock type K11

Rock structure K12

Rock mass structure K21

Strata dip angle K22

Rainfall infiltration coefficient K31

Ground slope K32

Vertical zoning of karst water K41

Groundwater in relation to spatial location of tunnels K42

DK294 + 433 to DK295 + 198

19

16

10

65

0.35

50

10

54

DK295 + 198 to DK295 + 987

4

3

14

36

0.25

46

9

65

DK295 + 987 to DK298 + 700

9

10

12

37

0.3

45

4

57

DK300 + 092 to DK300 + 458

14

12

16

35

0.3

12

5

64

DK300 + 458 to DK301 + 748

4

3

15

36

0.25

45

8

58

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