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>Geological conditions of the Jinping II diversion tunnels: (a) typical geological section (along the axis of 1<sup>#</sup> diversion tunnel) and (b) maximum principal stress along the axis of traffic tunnel A.</div>

Advances in Civil Engineering

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Figure 2

Figure 2: 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 2 | Comparative Study of the Excavation Damage and Rockburst of the Deeply Buried Jinping II Diversion Tunnels Using a TBM and the Drilling-Blasting Method 