Shock and Vibration / 2017 / Article / Tab 6

Research Article

Numerical Simulation of Blast Vibration and Crack Forming Effect of Rock-Anchored Beam Excavation in Deep Underground Caverns

Table 6

The damage depth, area of surrounding rocks, and the crushing rate of excavated rock mass.

Crustal stress/MPa0510204080

Damage depth of surrounding rocks/cm>50>50≈20≈10<10≈10
Damage area of surrounding rocks/%>50>50≈40≈20<20≈6.7
Crushing rate of excavated rock mass/%>75>70>70>50<30<10