Evaluation of Rock Quality of Tunnel Wall Rock Based on Rough Set Theory and Unascertained Measurement Theory
Table 7
Evaluation results of wall rock classification.
Tunnel mileage
Comprehensive unascertained measurement
Evaluation results
RS-UM
SPA
D-IP
Actual grade
Left tunnel, K106+760~790
0
0.056
0.355
0.589
0
IV
IV
IV
IV
Left tunnel, K106+790~820
0
0
0.333
0.546
0.121
IV
IV
IV
IV
Right tunnel, K107+776~806
0.102
0.219
0.519
0.160
0
III
III
III
III
Right tunnel, K107+806~836
0.248
0.106
0.560
0.087
0
III
III
III
III
Note: RS-UM is the evaluation method based on rough set theory and unascertained measurement theory, SPA is set pair analysis method, and D-IP is Delphi-ideal point method.
