WASHINGTON — Drug tunnels are not a new problem at the Southwestern border, but authorities say the number of sophisticated tunnels may be. Since November 2010, authorities have seized four complete ...
The Atal Tunnel is one of the most extraordinary tunnels in India, offering a remarkable solution to the challenge of connecting the remote regions of Himachal Pradesh to the rest of the country.
Tunnel engineering is a critical discipline that encompasses the design, construction, and long-term maintenance of underground structures. It involves an intricate analysis of ground behaviour, ...
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