Near the elevated construction site in the south of Ningbo, Zhejiang, a pile driver is under intense construction. What makes people puzzled is that the original noisy pile driver is quiet this time, and nothing can be heard 5 meters away. sound. It turns out that this is a world-leading pile foundation construction technology "static drilling and rooting pile construction method".

 

At present, the main methods of pile foundation construction are precast pile hammering and static pressure construction. These two construction methods have the disadvantages of serious soil squeezing and easy damage to the pile. In addition, there is another method-on-site pouring method, but it has defects such as uncivilized on-site construction, excessive mud discharge, and unstable pile quality. In order to avoid the shortcomings of conventional pile foundation construction, the R&D team of Ningbo Zhedong Building Materials Group has overcome the difficulties of pile foundation one by one, developed pile-to-pile connection technology, adopted mechanical connection technology; developed shear resistance and horizontal resistance High-performance pre-stressed high-performance concrete piles; solve the technical problems of uplift of precast piles. The "Static Drilling Root Pile Construction Method" is a large integration of various modern pile foundation construction techniques. Through comprehensive construction, noise is minimized, unnecessary soil discharge is reduced, construction waste discharge is minimized, and construction speed is accelerated.

 

At present, the "Static Drilling and Pile Planting Method" has obtained more than 20 national patents, and the enterprise standard has also been approved by the Zhejiang Provincial Housing and Urban-Rural Development Department. This construction method has been applied to the pile foundation project of a key resettlement district in the eastern New City of Ningbo, the pile foundation project of the North-South Ring Expressway of a major project in Ningbo City, and the pile foundation project of a five-star hotel in Hangzhou Bay New District. Wenzhou and Shanghai are also actively promoting and applying .

 

--China Construction News