The 13th International Pile and Deep Foundation Summit, co organized by Shanghai Zhenzhong, has come to a perfect conclusion!

Shanghai Zhenzhong large eccentric moment resonance free vibration hammer assists foundation construction

Recently, the highly anticipated 13th China International Pile and Deep Foundation Summit was held in Shanghai, China.

The conference mainly aims to exchange and discuss cutting-edge technologies in the field of pile foundation at home and abroad, as well as solutions to various pile foundation construction problems, promote the development of pile foundation construction technology, continuously improve the quality of pile foundation engineering worldwide, achieve sustained harmony in the pile foundation industry, and provide a high-level international chemical exchange platform for future development.

As a co organizer, Cao Xiaoji, the technical director of Shanghai Zhenzhong, was invited to attend the conference and gave a technical presentation titled "Application of Large Eccentric Moment Non Resonant Vibration Pile Hammer in Foundation Treatment Engineering", which received attention from all parties.

In the special report, Director Cao Xiaoji analyzed a key engineering case and combined theory with practice to analyze the technical characteristics and construction difficulties of the sinking stone pile method in soft foundation treatment construction. He proposed the concept that this method requires large eccentric moment and large vibration impulse equipment, highlighting the significant advantages of the large eccentric moment non resonant vibration pile hammer in the construction process of stone piles, such as fast pile sinking speed, high construction efficiency, good pile quality, safety and environmental protection.

Application of vibrating sand settling gravel pile

In recent years, with the strong promotion of super large infrastructure projects (such as airports, docks, etc.) by the country, higher requirements have been put forward for the construction safety, efficiency, energy conservation and environmental protection of foundation reinforcement and improvement technology. Among them, the vibration sinking stone pile method, especially the large-diameter vibration sinking stone pile method, is an important method for future foundation reinforcement and improvement projects.

Advantages of EP-B/C series vibrating pile hammers

In the application of vibration immersed gravel pile projects, the EP-B/C series resonance free eccentric moment adjustable vibration pile hammer has shown significant advantages compared to traditional vibration pile hammers, mainly including:

01 Gravel pile has good compaction effect. When the vibration is used to pull up the sinking tube, the amplitude should be above 8mm, and no vibration operation is required to make the compactness of the crushed stone reach the medium density requirement;

02 has a large eccentric mass moment and a large vibration impulse. A vibrating pile hammer with large eccentric mass moment and large vibration impulse has strong ability to overcome end bearing resistance, especially suitable for foundation reinforcement and improvement (such as sand piles, gravel piles, etc.) construction;

03 resonance free start and stop. The application of the technology of infinitely adjustable eccentric mass moment avoids the resonance generated during the starting and stopping process of traditional vibrating pile hammers with eccentric mass moment, enabling the machine to start and stop smoothly and freely, and preventing unpredictable damage to the vibrating pile hammer, pile driver, and sinking tube caused by strong vibrations generated by resonance;

Horizontal structure with smooth operation. The machine adopts a horizontal structure as a whole, which makes the operation smoother, safer, with low noise and temperature rise, and can meet long-term continuous work;

05 Start up with low energy consumption. Zero eccentric torque no-load starting solves the problem of requiring a large capacity power supply for the traditional vibration pile hammer under load starting.

06 patented motor, reliable operation. The dual output shaft variable frequency vibration resistant motor has more optimized structure, lubrication, and heat dissipation capabilities, reducing the maximum load on the bearing, lowering the heat generation of the bearing, improving its service life, and adapting to continuous long-term working conditions.

07 ultra-low damping coefficient. A reasonable spring stiffness coefficient and a heavy damping crossbeam make the damping coefficient far superior to the national standard.