The drill-and-blast technique enables real-time monitoring of geological conditions, allowing engineers to deploy stabilising ...

The Mumbai–Ahmedabad High Speed Rail (MAHSR) project has achieved a significant construction milestone in Maharashtra with ...

To build a $3.4-billion underground high-speed railroad into Oslo, Norwegian engineers left their comfort zone of drill-blast rock excavation in favor of tunnel-boring machines. Hard, abrasive rock ...

Workers drill during construction of the Flathead Tunnel in early June, 1968. (Mel Ruder/Hungry Horse News file photo) Conditions inside the Flathead Tunnel during construction. (Mel Ruder/Hungry ...