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Bookmark or Share- What lies beneath? A rare tour of Melbourne's secret tunnels amid $24 ...Keeping things secure in one of Melbourne's underground tunnels. ( ABC News: Danielle Bonica ) "Every day is a mystery on this job, finding stuff buried underground when we're doing excavation works.
- Tunnel - WikipediaA tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is enclosed except for the portals, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.
- Tunnels and underground excavations | History, Methods, Uses, & Facts ...tunnels and underground excavations, horizontal underground passageway produced by excavation or occasionally by nature’s action in dissolving a soluble rock, such as limestone. A vertical opening is usually called a shaft. Tunnels have many uses: for mining ores, for transportation —including road vehicles, trains, subways, and canals ...
- U.S. Cities with Incredible Underground Tunnel Systems - GroundworksStart quiz. From old & forgotten tunnels to today’s communities & public places, here are our top pick of U.S. cities with underground tunnel systems.
- Tunnelling and Underground Space Technology - ScienceDirectTunnelling and Underground Space Technology incorporating Trenchless Technology Research is an international journal which publishes authoritative articles encompassing original research and case studies on the development of tunnelling technology, the use of underground space, underground construction, and trenchless technology.
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