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>Unloading failure mechanism by different excavation methods: (a) unloading and failure process during the excavation, (b) the EDZ induced by the TBM, and (c) the EDZ induced by drilling-blasting.</div>

Advances in Civil Engineering

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Figure 7

Figure 7: 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 7 | Comparative Study of the Excavation Damage and Rockburst of the Deeply Buried Jinping II Diversion Tunnels Using a TBM and the Drilling-Blasting Method 