Research Article

Flowchart of DEM Modeling Stability Analysis of Large Underground Powerhouse Caverns

Table 5

Material property values used for rock supports in the numerical model.

Supporting typeElastic modulus (GPa)Tensile yield strength (kN)Grout stiffness (N/m/m)Grout bond strength (Pa/m)

Bolt 2520019617e956e9
Bolt 2820024018e963e9
Bolt 3220032019e972e9
Anchor195200017e956e9