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

<div>A new roadway excavation method: (a) gasbag reserved free space in the two-step roadway and (b) static expansion mechanical fracturing technology.</div>

Advances in Civil Engineering

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Figure 3: Numerical and Preliminary In Situ Investigation on Roadway Excavation Using Static Expansion Mechanical Fracturing 