Mathematical Problems in Engineering / 2021 / Article / Tab 3 / Research Article
Dynamic Evaluation Method of the EW-AHP Attribute Identification Model for the Tunnel Gushing Water Disaster under Interval Conditions and Applications Table 3 The index grading standards.
Evaluation index R 1 R 2 R 3 R 4 I 1 35 ∼ 60 60 ∼ 70 70 ∼ 85 85 ∼ 100 I 2 (m)h < 1010 ≤ h < 30 30 ≤ h < 60 h > 60I 3 (m)<50 50 ∼ 100 100 ∼ 200 200 ∼ 300 I 4 (10−5 cm/s)<1 1 ∼ 1000 1000 ∼ 100000 >100000 I 5 (m3 /d)<100 100 ∼ 500 500 ∼ 1000 >1000 I 6 (%)<20 20 ∼ 40 40 ∼ 60 >60 I 7 (°)0 ∼ 10 10 ∼ 25 25 ∼ 45 45 ∼ 65 I 8 35 ∼ 60 60 ∼ 70 70 ∼ 85 85 ∼ 100 I 9 35 ∼ 60 60 ∼ 70 70 ∼ 85 85 ∼ 100 I 10 (m)<50 50 ∼ 100 100 ∼ 200 >200