by Robert D. Bennett
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Tunnel cost-estimating methods
The New Roman Empire
Alternative methods for disposal of low-...
Rendezvous 2.2
Sector 12
Shaft 235
Vertical and Decline Shaft Sinking
Drilled Shafts in Rock
Shaft-sinking under difficult conditions
De l'etablissement des puits de mines da...
Vertical shaft sinking
In situ measurements and preliminary des...