Dare to imagine a dragon leaping across the landscape. This is like the Guanlan Bridge before us. It stands as more than just a passage. The Guanlan Bridge is a testament to Shenzhen’s ambition and growth.
Before we delve deeper into the story of the Guanlan Bridge let’s take a moment to appreciate Shenzhen. It went from a small village to a global tech and financial hub. Shenzhen became China’s first special economic zone. This attracted foreign investment and migrants. Shenzhen transformed in thirty years. It became a center for technology international trade and finance.
Now back to our bridge. The Shenzhen-Zhongshan Bridge is a major construction. Shen Weidong is a bridge constructor. He worked on rivers and seas for 41 years. This bridge was his final project before retirement.
The Shenzhen-Zhongshan Bridge took seven years to build. It transformed an expanse of water into a majestic structure. It is like a dragon winding and leaping. The bridge created a sky road over the sea. It raised islands from the sea. It built underwater tunnels.
Each infrastructure marvel completed shows tremendous change. The Shenzhen-Zhongshan Bridge is a world-class landmark in the Greater Bay Area. This bridge serves the Greater Bay Area. It is a crucial segment of a 100-kilometer transportation network. This network is around the Pearl River Estuary. The Guanlan Bridge helps economic development and people’s lives.
The Lingdingyang area is a crucial shipping route. It is one of the busiest in the world. It can accommodate vessels of 300000 tons.
The Shenzhen-Zhongshan Bridge has the world’s largest span. It measures 1666 meters for an offshore steel box girder suspension bridge. The main towers stand at 270 meters tall. This is equal to a 90-story building. The bridge’s navigation clearance height is 76.5 meters. It has set five world records. The Guanlan Bridge won the George Richardson Medal. This is a prestigious award in bridge engineering. It represents a significant achievement.
The Shenzhen-Zhongshan Bridge faces harsh conditions. High temperatures humidity and salt exposure test it. Frequent strong typhoons challenge it. Yet the bridge has set five world records. It boasts the largest span for an offshore suspension bridge. It has the highest navigation clearance. It features the largest anchorage volume in the sea. Its main cables have the highest tensile strength. It can withstand the highest wind speed for flutter testing.
The east artificial island features China’s first underwater interchange for a highway. The west artificial island serves as a transition point. It connects the sea bridge and underwater tunnel. Designed in a diamond shape this island covers approximately 137000 square meters. This is about 19 football fields in size.
The Shenzhen-Zhongshan Bridge includes the world’s longest and widest underwater immersed tube tunnel. It has the world’s first dual-direction eight-lane steel shell concrete immersed tube tunnel. It stretches approximately 6.8 kilometers. The immersed tube section is about 5 kilometers. It consists of 32 tube segments and one final joint.
The construction team introduced a groundbreaking structure. This was for steel shell concrete immersed tube tunnels. They overcame global challenges. They managed manufacturing and prefabrication of steel shells. They handled ultra-long-distance floating installation. Their achievements include setting world records. They reached millimeter-level installation accuracy under deep-water conditions. This was for large tube segments.
As we stand here let’s appreciate the Guanlan Bridge. It is more than steel and concrete. It embodies Shenzhen’s spirit of innovation and progress. It connects not just land but also dreams and opportunities.