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How was the world's longest submerged tube tunnel built?
The Fehmarnbelt tunnel connecting Germany and Denmark is about 18 km long, made up of 89 sections and is expected to be completed in 2029.
Tunnel
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Articles about Tunnel
294 published items.
Environment
Tokyo expands underground 'cathedral' to avoid flooding caused by climate change
At exactly 5 a.m. on August 30, water rushed into a large underground space known as the 'cathedral' just north of Tokyo.
Scientific works
California built a $20 billion rainwater storage tunnel
A giant tunnel used to collect and store rainwater will help California cope with prolonged drought caused by climate change.
New technology
China developed the world's first hard rock blast tunneling machine
Chinese scientists have developed the world's first tunneling and rock blasting machine (BBM), which can increase efficiency by more than 30% when drilling super-hard ro…
Oceanography
The grave of nuclear waste under the sea costs 83 billion USD
A giant undersea grave planned to store Britain's growing amount of radioactive waste will become the country's most expensive and lengthy major infrastructure project.
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The strongest wind tunnels in the world
Wind tunnels have become a mainstay in the aerospace industry, helping to test the aerodynamics of countless aircraft and rockets.
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Project Iceworm: Nuclear missiles under the ice!
Hidden beneath Greenland's icy expanse lies a secret Cold War-era base: Camp Century.
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Huge sewer pipes underneath London
A massive concrete pipeline with a capacity of 1.6 million cubic meters is being built under London to reduce the frequency of wastewater discharges into the River Thame…
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He completed the 6.3 billion USD super sewer
After 8 years of construction, the super sewer that can hold as much water as 600 Olympic swimming pools under London has been completed and will operate on a trial basi…
Photo library
Horrifying photos of volcanic eruptions in Iceland
A volcano in Iceland is currently erupting after weeks of earthquakes rocked the area, the Icelandic Meteorological Office said.
New technology
Europe opens a tunnel to test 1,000km/h high-speed trains
Europe's longest tunnel to test Hyperloop bullet train technology opened on March 27 in the Netherlands.
History
Things related to the Berlin Wall are rarely mentioned
In August 1961, the army of the GDR closed the border between East and West Berlin, and began to build a wall to separate it. Here are things about that Berlin wall that…
Scientific works
The world's longest single-span suspension bridge passes the test
Luzhijiang suspension bridge about 800 m long completed the test with a convoy of 1,280 tons of cargo trucks running back and forth in 8 days.
Scientific works
Watch China build a 6-lane highway tunnel 70m deep at the bottom of the Yangtze River
The tunnel at a depth of 70m lies at the bottom through the Yangtze River, designed to be a two-way highway with 6 lanes.
Scientific works
Japan's world champion anti-flood underground construction: Each tank can hold 1 space shuttle
Over the decades, Japan has perfected this monumental work of art, boasting that its sophisticated flood defense system can rival the wonders of the world.