Comparative Study of the Excavation Damage and Rockburst of the Deeply Buried Jinping II Diversion Tunnels Using a TBM and the Drilling-Blasting Method

<div>A schematic diagram of testing holes arrangements in diversion tunnels: (a) for TBM sections and (b) for drilling-blasting sections.</div>

Advances in Civil Engineering

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Figure 4

Figure 4: Comparative Study of the Excavation Damage and Rockburst of the Deeply Buried Jinping II Diversion Tunnels Using a TBM and the Drilling-Blasting Method 

Figure 4 | Comparative Study of the Excavation Damage and Rockburst of the Deeply Buried Jinping II Diversion Tunnels Using a TBM and the Drilling-Blasting Method 