Under the Alps, Two Parallel Tunnels Cross 57 Kilometers of Mountain and Become Covered by up to 2,300 Meters of Rock, While Passenger Trains Can Travel Inland at Speeds of up to 250 Km/h
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The Saint-Gothard base tunnel, the longest railway tunnel in the world with its 57 km, took 17 years of drilling and the extraction of 28.2 million tons of rock. This evacuated mountain was not wasted: recycled into concrete aggregates or transformed into ecological islands in a lake, it participated in its own transformation. More
Under the Swiss mountain massif, the San Gotardo Tunnel crosses approximately 57 kilometers between Erstfeld and Bodio, forming the longest underground railway crossing in the world. In its deepest stretch, about 2,300 meters of rock are above the structure. The system was designed to allow maximum speeds of up to 250 km/h for... The post Under the Alps, two parallel tunnels cross 57 kilometers of mountain and become covered by up to 2,300 meter…
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