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Data Availability Statement The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
Conflicts of Interest The authors declare no conflicts of interest. References 1 and , “Hard Rock Tunnel Boring, Cutting, Drilling and Blasting: Rock Parameters for Excavatability,” in 10th ISRM Congress – International Society for Rock Mechanics and Rock Engineering (Johannesburg: South African institute of Mining and Metallurgy, September 8–12, 2003).
As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.