Construction machinery and NATM tunneling in metro tunnel construction Construction machinery and NATM tunneling in metro tunnel construction mining underground stock videos & royalty-free footage ...

Video footage and photos of Syrian President Bashar al-Assad's secret underground tunnel network have surfaced ... with Pepsi cans and Tetley tea, a modern living room, a bathroom, and discarded ...

Special to The New York Times. TimesMachine is an exclusive benefit for home delivery and digital subscribers. Full text is unavailable for this digitized archive article. Subscribers may view the ...

Outline black icons set in thin modern design style Outline black icons set in thin modern design ... Beautiful underground location. Man digging and mining gold in an underground tunnel Person worker ...

A scale model of Giant Mine compares the mine's chambers, which store arsenic trioxide, to a building in Yellowknife. The pink chamber is already frozen, the white one is not, and the Precambrian ...

The tunnels are dug directly through natural ... calls it “ultra high-grade” and the country’s “first modern underground mine.” But amid growing tensions with some local community ...