Here stands the 2# Niuzui Great Bridge, a testament to modern engineering. This bridge is part of the larger Shenzhen-Zhongshan Link. It’s more than just a way to cross water. It’s a record-breaking feat.
Imagine reducing a two-hour journey to just 30 minutes. The 2# Niuzui Great Bridge makes this possible. It connects Shenzhen and Zhongshan. These cities lie on opposite sides of the Pearl River estuary. This estuary is one of the world’s most populated areas.
The Shenzhen-Zhongshan Link includes two bridges. It also has two artificial islands and an underwater tunnel. The entire link stretches 24 kilometers. That’s about 15 miles.
Did you know the Shenzhen-Zhongshan Link broke ten world records? These records aren’t just about size. They are about specific achievements in engineering.
Consider these facts about the 2# Niuzui Great Bridge and its associated link. It boasts the longest two-way, eight-lane immersed tube tunnel. This tunnel measures 5,035 meters. It also features the widest underwater steel shell-concrete immersed tube tunnel. At its widest, it reaches 55.6 meters.
The 2# Niuzui Great Bridge offers the highest navigation clearance for a sea bridge. This allows ships to pass underneath easily. It also includes the world’s first underwater expressway interchange and airport interchange.
The bridge uses the widest repeatedly foldable M-shaped water stop. This is in the final joint of the immersed tube tunnel. The width measures three meters.
Engineers tested the bridge for wind resistance. It withstood wind speeds of 83.7 meters per second. That’s the world’s highest wind resistance test speed for a suspension bridge.
The tunnel uses self-compacting concrete. A single tube section has a concrete volume of 29,000 cubic meters. The anchor’s concrete volume measures about 344,000 cubic meters. That’s the largest offshore suspension bridge anchor.
The Shenzhen-Zhongshan Link has the largest span for a fully offshore steel box girder suspension bridge. This measures 1,666 meters. Its steel bridge deck has hot-mix epoxy asphalt paving covering 378,800 square meters.
Fourteen robots patrol the tunnel. They monitor pipes and cables. These robots also watch for car accidents. They can even direct traffic using loudspeakers. These loudspeakers also film the scene and transmit it to a control center.
Lights along the tunnel walls change color. Green means everything is fine. Red signals an emergency. During evacuations, the lights turn from yellow to green. This guides people to safety.
The 2# Niuzui Great Bridge is more than steel and concrete. It represents innovation. It is a link to the future.