The top documents tagged [prefabricated tunnel]

floating tunnels

floating tunnels

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Transatlantic tunnel

Transatlantic tunnel

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CE 439 Railway and Metro Tunnels. CE 439 subjects History of railway and metro tunnels Preliminary studies and design Considerations Ground treatment.

CE 439 Railway and Metro Tunnels. CE 439 subjects History of railway and metro tunnels Preliminary studies and design Considerations Ground treatment.

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