Hangzhou Airport HSR 174-Span 900t Box Girder Erection Completed

Recently, with the final box girder steadily placed onto the pier of Jiangdong Extra Large Bridge, the 174-span 900t box girder erection task for the Hangzhou Xiaoshan Airport Station Approach Project has been successfully completed. This critical milestone marks the project's full transition to follow-up deck construction, accelerating the core corridor of the "Railway-Bound Yangtze River Delta."

As a core component of the "One Axis, Two Wings" East Wing Corridor of Hangzhou Railway Hub, the Hangzhou Airport HSR is a key project for building an integrated air-rail intermodal transportation hub and promoting multi-network integration of the Yangtze River Delta's multi-level rail system.

DJB900 Beam Erector + ZYLC1000 Transporter

The erection task was undertaken by our self-developed DJB900 Beam Erector and ZYLC1000 Transporter. Addressing the project's characteristics of "high precision, heavy tonnage, and stringent standards," the equipment demonstrated three core advantages: structural stability, high automation, and high-precision hydraulic synchronous control.

During operation, this "steel giant" not only showcased powerful lifting and transporting capabilities but also, thanks to its reliable micro-motion system, achieved millimeter-level positioning accuracy for the heavy box girders—proving the strength of "Handan CRBME Manufacturing."

Soft Soil Settlement + Cross-Operations + Variable Climate

The erection site in Qiantang District, Hangzhou, presented multiple severe challenges:

1. High Risk of Soft Soil Settlement: The area features soft, saturated silt with low bearing capacity. The transporter had to constantly guard against uneven settlement, with the technical team monitoring deformation throughout.

2. Tight Schedule with Cross-Operations: As the project's critical control structure, Jiangdong Extra Large Bridge involved extensive cross-operations. The effective construction window was severely compressed; every hole crossing had to be flawless.

3. Variable Subtropical Climate: Construction coincided with typhoon and monsoon seasons. Sudden heavy rainfall and high winds threatened lifting safety and girder joint quality, adding significant pressure.

 "One Span, One Plan" + "Rain-Stop-Fight" Tactics

We implemented a "one span, one plan" strategy and a "rain-stop-fight" tactic to seize short weather windows.

Working "day and night, through weekends," our team overcame adverse weather, site constraints, and technical difficulties. The project achieved its goals of "zero accidents" for safety and "zero defects" for quality. The successful completion of 174 spans represents the wisdom and effort of every team member.

The flawless execution of this task represents another real-world validation of our equipment's outstanding performance and a powerful testament to the spirit of our team.

Upon project completion, we received a commendation letter from the China Railway First Group Hangzhou Airport HSR Station Approach Project Section 3 Headquarters, reflecting the client's high recognition of our construction team and equipment.