RESEARCH

Geosystems Laboratory

Space Evaluation

Localized Failure Mechanisms of Linings Induced by Non-Uniform Thrust Forces

Thrust force and torque

  • The total required thrust was calculated from the reaction force extracted at the reference point where the TBM's node groups are kinematically coupled.
  • The torque is analyzed by summating the vector product of the contact force vector and the position vector from the rotation axis of the cutterhead.
  • Required thrust force FTh = FC + FS + FF + ΔF
  • Calculation of thrust force required under complex ground conditions using numerical models
EPB TBM operation simulation uses CEL-LDFE model and numerical investigation of the behavior and local failure mechanism of segmental lining under non-uniform loading was done.

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