Fig. 1. Cross-sectional diagram of a target site
Fig. 2. Evaluation of particle contact properties by simulating the direct shear test
Fig. 3. Dimension of 3D numerical ground model
Fig. 5. Numerical model of 3D TBM model
Fig. 4. Front and side view of cutterhead
Fig. 6. TBM excavation setting for simulation
Fig. 7. Total number of particles at each TBM parts
Fig. 8. Mass flow rate at the screw auger
Fig. 9. Resistant torque at the screw auger
Fig. 12. Average force at the disc cutter
Fig. 10. Total force at the cutterhead during excavation
Fig. 11. Total torque at the cutterhead during excavation
Fig. 13. Average resistant torque at the disc cutter
Fig. 14. Total force at the disc cutter by radius
Table 1. Range of design strength parameter for weathered soil in selected site
Table 2. DEM parameters for particle and particle-particle properties
Table 3. DEM parameters for TBM and TBM-particle properties (Ucgul et al., 2014)
Table 4. Motion conditions of TBM parts during its advance
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