Numerical and Preliminary In Situ Investigation on Roadway Excavation Using Static Expansion Mechanical Fracturing

<div>Application test of mechanical fracturing roadway excavation: (a) cross-section of parking chamber; (b) parking chamber location; (c) core drilling rig; and (d) piston splitter.</div>

Advances in Civil Engineering

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Figure 14

Figure 14: Numerical and Preliminary In Situ Investigation on Roadway Excavation Using Static Expansion Mechanical Fracturing 