Journals
Publish with us
Publishing partnerships
About us
Blog
Mathematical Problems in Engineering
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
Mathematical Problems in Engineering
/
2021
/
Article
/
Tab 1
/
Research Article
Dynamic Evaluation Method of the EW-AHP Attribute Identification Model for the Tunnel Gushing Water Disaster under Interval Conditions and Applications
Table 1
Grading standards for the evaluation index.
Evaluation index
I
i
Evaluation index value
t
i
Order of evaluation
R
1
R
2
…
R
k
I
i
1
t
i
1
a
10
∼
a
11
a
11
∼
a
12
…
a
1 (
k
− 1) ∼
a
1
k
I
i
2
t
i
2
a
20 ∼
a
21
a
21 ∼
a
22
…
a
2 (
k
− 1) ∼
a
2
k
I
ij
t
ij
aj
0 ∼
aj
1
aj
1 ∼
aj
2
…
aj
(
k
− 1) ∼
ajk
I
im
t
im
am
0 ∼
am
1
am
1 ∼
am
2
…
am
(
k
− 1) ∼
amk