Drilling Construction of The World’s Longest Cross Sea High-Speed Railway Bridge
On August 10th, the first bored pile of the main tower pier of the Beihang Road Bridge Drilling Construction. The world’s longest cross sea high-speed railway bridge – Hangzhou Bay Cross sea Railway Bridge, was successfully drilled in Haiyan.
The Hangzhou Bay Cross Sea High Speed Railway Bridge spans the entire sea and is designed with ballastless tracks. It is a double track high speed railway bridge with a design speed of 350 kilometers per hour. It is currently the longest and highest construction standard high-speed railway cross sea bridge under construction in the world.
The Hangzhou Bay Cross Sea High Speed Railway Bridge has a total length of 29.2 kilometers. It contains three waterway bridges in the north, middle, and south. As well as approach bridges across embankments, sea areas, and shallow areas. It is a super long high-speed railway bridge cluster project.
The bored pile of the No. 8 main tower pier of the North Channel Bridge constructed by China Railway Bridge Bureau was the first to achieve drilling during the construction of the main pier.
There are a total of 52 drilled piles installed on the 8th main tower pier. The 10th pile is being constructed this time, with a pile length of 129.5 meters, a pile foundation diameter of 2.5 meters, and a drilling depth of 151 meters. The silt and sand layers in the stratum are thick, making it difficult to form holes and piles.
The bridge started construction in November 2022 and is expected to be completed by the end of 2027.
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