Research and Analysis on the Influence of Small Clear Distance Drilling and Blasting Method on the Existing Tunnel Structure

<div>Numerical simulation results under 10 MPa peak load. (a) Mises stress excavation-excavation depth curve. (b) Vertical displacement-excavation depth curve. (c) Resultant velocity-excavation depth curve.</div>

Advances in Civil Engineering

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Figure 9

Figure 9: Research and Analysis on the Influence of Small Clear Distance Drilling and Blasting Method on the Existing Tunnel Structure 