hard-rock tunnel, high geo-stress state, progressive damage, Failure mechanism, fracture evolution, time-delay rockburst
Layered Phyllite, Unloading Mechanics, SUBI Constitutive Model, Tunnel Excavation
Face stability, shallow EPB shield tunnel, DEM, erosion, forewarning information
Luding earthquake, mountain tunnel, highway, field investigation, preliminary analysis
Yielding support, Ceramic shells, size effect, Microstructural evolution, Boundary condition, Compression behavior