This technical animation describes the construction processes done in Niayesh tunnel project by NATM method. The contractor had ordered this animation for several purposes including technical documentation, advertising their technical experiences, showing public what’s happening underground and so on.
Niayesh city road tunnel by length of more than 10 km designed to cut down the traffic jams in the Tehran metropolis, is the second-longest under-construction city-road tunnel in the world in 2012 after
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