Fig. 1. Load combination of Natm lining
Fig. 2. Flow of NATM secondary lining design
Fig. 3. Flow of structural analysis modeling
Fig. 4. Input Module
Fig. 5. Reinforcement Section Module
Fig. 6. Section Calculation Module
Fig. 7. Output Module
Fig. 8. Comparison of the flow of NATM secondary lining design after applying the ANN
Fig. 9. Flow of building an ANN
Fig. 10. Cross-sectional drawing of NATM lining (unit : mm)
Fig. 11. FEM anlayzing flow for NATM secondary lining
Fig. 12. Comparison of computed versus predicted values for training
Table 2. Application of Temperature load
Table 3. Role of reinforced concrete secondary lining
Table 1. Theory of coefficient of subgrade reaction
Table 4. Consideration of the secondary lining design
Table 5. The range of input value considered for ANN
Table 6. Input Value for FEM analysis
Table 7. Load combination factor
Table 8. Input and Output parameters
Table 9. Maximum and Minimum sectional forces by ANN
Table 10. Result of building an ANN
Table 11. Material parameters for subse tunnel
Table 12. Result of using developed program
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