Description

The Hangzhou-Wenzhou Railway Xianju Super Bridge is located in Xianju County, Taizhou City, Zhejiang Province. The bridge spans 3999.41 meters in total length. It spans the Yongan River and the S28 Taijin Expressway with (84+5*150+84) meters of rigid frame continuous beams. It is 919.5 meters long, has a total of 129 construction sections, and is constructed using the cantilever cast-in-place method. This continuous beam is the longest five-span prestressed concrete rigid frame continuous beam in a railway project under construction in China and spans existing highway lines, county roads, and streams. Construction is challenging, the safety risks are high, and the environmental and water protection requirements are stringent. These are crucial control projects along the entire Hangzhou-Wenzhou Railway.

To ensure the smooth construction of existing lines and avoid safety hazards such as construction during flood season, the project department applied for construction in advance to the highway and river management units, and adopted the construction technology of bridge bored piles and fully enclosed cantilever form traveler to prepare for various preparations. Striving for favorable conditions for continuous beam construction.

It is known that the Hangzhou-Wenzhou high-speed railway has a total length of 331 kilometers and a design speed of 350 kilometers per hour. It is the fastest way to reach the Hangzhou metropolitan area, Jinhua-Yiwu metropolitan area, and Wenzhou metropolitan area in one hour in Zhejiang Province. It is also a crucial part of the Yangtze River Delta high-speed railway circle. component. Once the entire line is completed and opened to traffic, it will be of great significance in forming a convenient channel between the Yangtze River Delta Economic Zone and the economic zone on the west coast of the Taiwan Strait, connecting the Yangtze River Economic Belt and the Maritime Silk Road, and creating an intercity rail transit network in the Yangtze River Delta region.

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