Research Article

Stability Assessment of Ground Surface along Tunnels in Karst Terrain Using Improved Fuzzy Comprehensive Evaluation

Table 2

Explanation of triangular fuzzy number.

Fuzzy numberExplanationTFNInverse TFN

One object is equally important to the other(1, 1, 1)(1, 1, 1)
One object is slightly important than the other(1, 3, 5)(1/5, 1/3, 1)
One object is moderately important than the other(3, 5, 7)(1/7, 1/5, 1/3)
One object is strongly important than the other(5, 7, 9)(1/9, 1/7, 1/5)
One object is extremely important than the other(7, 9, 11)(1/11, 1/9, 1/7)
Intermediate values between the above two adjacent judgments(1, 2, 4)(1/4, 1/2, 1)
(2, 4, 6)(1/6, 1/4, 1/2)
(4, 6, 8)(1/8, 1/6, 1/4)
(6, 8, 10)(1/10, 1/8, 1/6)