Jiangsu Anteng Supports Xiamen's Third Eastern Passage, Building the Foundation for a Sea-Crossing Link with Hydraulic Vibratory Hammers

In the eastern waters of Xiamen, construction of the Xiamen Third Eastern Passage, a sea-crossing corridor connecting Xiamen Island with Xiang'an Airport, is moving forward at full speed. Section A3 is a key offshore bridge section, starting from the west channel of Dadeng Island and extending east to the Dadeng Interchange. With a total length of about 6.03 km, it is being built to a two-way eight-lane expressway standard. The section has a complex construction environment, involving numerous offshore bridge foundations and interchange structures, and places extremely high requirements on the reliability, efficiency and adaptability of construction equipment.

In this provincial key project, Jiangsu Anteng participated deeply with high-performance hydraulic vibratory hammer products, providing key equipment support to the project contractors, China Railway Major Bridge Engineering Group and China Railway Tunnel Group, and efficiently completing the driving and extraction of various steel pipe piles.

Project Overview and Challenges

The main body of Xiamen Third Eastern Passage Section A3 is an offshore bridge, requiring construction of a complex structural group that includes the Dadeng West Channel Bridge, non-navigable span bridges and the large-scale Dadeng Interchange mainline bridge. The project faces multiple challenges including marine construction conditions, deep geological layers and a tight schedule. Temporary trestles, drilling platforms and permanent bridge pile foundations all require large numbers of steel pipe piles of different diameters and lengths of 20 to 30 m. How to complete pile insertion and later extraction quickly, accurately and with low disturbance under marine conditions has become one of the core factors affecting project progress and cost.

AT200HF: A Reliable Foundation for Trestle Construction

In the section handled by China Railway Major Bridge Engineering Group, large temporary trestles and drilling platforms form the foundation for all offshore operations. Public bidding documents for the section clearly list steel pipe pile insertion and steel pipe pile extraction as core work items.

The AT200HF hydraulic vibratory hammer supplied by Jiangsu Anteng became an ideal choice in this context. The equipment is especially suitable for temporary structural pile construction. Its strong excitation force and stable high-frequency output can ensure that steel pipe piles up to 30 m long sink rapidly through complex seabed strata to the designed elevation, providing stable support for trestle platforms. In later stages or when adjustments are needed, the AT200HF can also complete pile extraction efficiently, enabling material recycling and fully meeting the project's requirements for efficient and economical temporary works.

AT300: Efficient Power for Pile Foundation Works

At the same time, in the A3 section pile foundation works undertaken by China Railway Tunnel Group Road and Bridge Engineering Co., Ltd., Jiangsu Anteng's AT300 hydraulic vibratory hammer took on a more demanding task. Compared with temporary trestle piles, permanent bridge pile foundations require stricter construction quality, precision and bearing capacity.

As a larger-tonnage professional machine, the AT300 fully proved its excellent pile-driving performance and working-condition adaptability. In this section, it was used to drive the steel pipe piles required for the main project. These piles are deep, technically demanding and serve as the crucial anchors that will support the future sea-crossing bridge. With powerful output and reliable stability, the AT300 ensured that every pile was completed to high quality, laying a solid foundation for smooth construction of the entire A3 bridge body.

In the technically complex and large-scale Xiamen Third Eastern Passage A3 sea-crossing project, Jiangsu Anteng's AT200HF and AT300 hydraulic vibratory hammers served two key construction scenarios: temporary facilities and permanent structures. They are not just construction tools, but important supports for meeting project milestones, controlling construction costs and realizing technical plans. This successful application once again proves the reliable value and professional strength of Anteng equipment in major engineering challenges, leaving a solid mark on China's infrastructure development.