Beijing-Hangzhou Grand Canal Huai’an Four-Line Lock Project Case Study

Beijing-Hangzhou Grand Canal Huai’an Four-Line Lock Project Case Study: Shanghai Zhenzhong’s EP200 Resonance-Free Vibrating Hammer Efficiently Supports the Construction of a Key National Water Transport Project

The Beijing-Hangzhou Grand Canal Huai’an Four-Line Lock Project is a key water transport project under China’s 14th Five-Year Plan and a core component of Jiangsu Province’s water transport system. Located at the junction of the Huai’an Canal and the Northern Jiangsu Main Irrigation Channel, the project has a total investment of 944 million yuan and a construction period of three years. The project involves the construction of a new 2,000-metric-ton two-line lock between the existing three-line locks, with a lock chamber measuring 290 m × 34 m × 5.0 m, placing extremely high demands on the technical performance and reliability of construction equipment.

During the driving of steel pipe piles in the water near the shore, the project’s geology consisted primarily of silty clay and silt. The steel pipe piles had a diameter of 1,000 mm, a wall thickness of 10 mm, a total length of 21 m, and were driven 13.5 m into the ground—penetrating the silty clay layer and extending 5.5 m into the silty sand layer. A hoist-driven method without a guide frame was adopted for construction. During construction, the project faced multiple challenges, including complex geological conditions, high construction precision requirements, and a tight schedule. The client noted that the adjacent contract section was using a 230-metric-ton excitation force hydraulic vibrating hammer. Traditional hydraulic vibrating hammers generate high excitation forces but have low eccentric moments, resulting in high energy consumption and increased construction costs. Additionally, they pose a risk of equipment resonance, require high-precision fabrication of steel casings, and can compromise the accuracy of the casings as well as the safety and service life of the hoisting equipment.

Faced with these construction challenges, the client proactively contacted Shanghai Zhenzhong to seek a better solution. After reviewing the project details, Shanghai Zhenzhong’s technical team, based on comprehensive geological reports and technical calculations, recommended the EP200 resonance-free electric-drive vibratory hammer to the client. Utilizing proprietary resonance-free variable-frequency, variable-torque technology, this equipment successfully replaced the traditional hydraulic vibratory hammer—which had an eccentric moment of 33 kg·m and an excitation force of 230 t—with an eccentric moment of 77 kg·m and an excitation force of 105 t. While meeting pile driving requirements, it significantly reduced the burden of equipment configuration and energy consumption.

The outstanding performance of Shanghai Zhenzhong’s EP200 resonance-free electric-drive vibratory hammer at the Huai’an Ship Lock Project earned high praise from the construction contractor. According to customer feedback, the equipment is easy to operate and highly adaptable, maintaining stable output even under complex working conditions. It provided a reliable guarantee for the project’s on-schedule progress, achieving the goal of equivalent construction efficiency with “smaller equipment and lower energy consumption.” This fully demonstrates Zhenzhong’s technical strength and product advantages in the field of high-end vibratory hammers, offering a valuable solution for future similar inland waterway hydraulic engineering projects.

The successful application in this Huai’an Four-Line Ship Lock project once again validates the core advantages of Shanghai Zhenzhong’s anti-resonance vibrating hammer series in key infrastructure projects such as inland waterways, hydraulic ship locks, and shoreline pile foundations. Leveraging product characteristics such as resonance-free operation, low energy consumption, high stability, and high precision, Shanghai Zhenzhong has successfully addressed the pain points of traditional construction methods, providing an efficient, energy-saving, and reliable benchmark solution for similar domestic water transport infrastructure projects, and continues to contribute to the high-quality development of the nation’s water transport infrastructure.