Classic bit kinematics - 3. Pure rolling of bit cones doubles performance
Application of trenchless methods for pipelines renovation on mining areas
Somport-Tunnel: dritte Hauptverkehrader zwischen Frankreich und Spanien
North Sea operators drilling varied projects. Drilling market focus
Latest innovations in surface mining
Foamed cement job successful in deep HTHP offshore well
Die Stahlberger Grubenbahn : auf schmaler Spur von Müsen nach Dahlbruch
Deepwater gas development off Egypt overcomes challenges
Underground machines and equipment of Belorussian automotive works
Heavy-duty quarry dump trucks, road-bulding and auxiliary transport
Großbritannien bekommt einen Hochgeschwindigkeits-Bahnanschluß zum Kanaltunnel
Highlighting Scandinavian tunnelling
Driving a large tunnel in difficult ground at Engelberg