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Discover how China excels in water bridge construction by combining technological innovation and a unified planning approach
China, with its vast territorial extension and population of 1,4 billion people, is known for its impressive transport infrastructure. Among his most notable achievements is the construction of water bridges, which have drawn global attention for their speed and accuracy, according to the video on the Construction Time channel.
Water bridge construction methods
Building water bridges presents unique challenges, such as the need to stably secure submerged foundations. Four main methods are used globally:
- Coffins: Hollow structures that are lowered to the bottom of the body of water, allowing water to be pumped out and the space to be filled with concrete.
- Dryers: Temporary barriers that create a dry area for construction around the bridge foundation.
- Driven stakes: Metal tubes are driven into the river or sea bed and filled with concrete.
- Prefabricated structures: Parts of the bridge are constructed off-site and then transported and assembled in situ.
Chinese innovations in bridge construction
China, however, has stood out for the application of innovations that speed up the construction process and reduce costs:
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- Continuous multiple spans: To cover large areas of water and improve navigation, as seen in the Taison River Bridge, which uses two large spans and three towers to span the river.
- Three-cable plane structure: It allows the construction of multifunctional bridges that support railway, subway and expressway traffic, exemplified by the Tianxianzhou River Bridge.
- Swivel Construction: Structures are assembled on land and then rotated to their final position, as applied to the Wuhan Swing Bridge.
- Prefabricated general assembly: Use of prefabricated segments for quick assembly, increasing the support capacity of bridges.
- SLJ900: Equipment that assembles bridge segments accurately and quickly, reducing construction time by up to 60%.
Political and economic factors
The political scenario in China, with a centralized government and the Communist Party in power, enables fast and efficient execution of large infrastructure projects. The absence of bureaucracy and the ability to plan in the long term are crucial advantages for carrying out works in record time.
The China continues to lead the world in water bridge construction, thanks to its technological innovations and a political approach that facilitates the execution of large projects. As the country faces challenges such as the “zero COVID-19” policy and its economic implications, efficiency in infrastructure construction remains a strong point.
