Bridge Screw pile foundation

This project is located in Galway, Ireland. The bridge design adopts a spiral pile foundation scheme, which is produced and designed by our factory. The design uses spiral steel pile foundations, totaling 680 piles. The pile foundation design is mainly used to bear vertical loads and horizontal forces, in order to adapt to the site conditions and reduce the impact on sensitive environments.
Geological conditions: According to the data from the Irish Geological Survey and the geotechnical investigation report of this project, the surface layer of the site is mostly soft clay and silt (commonly found in riverbanks/coastal areas), and there may be glacial till, limestone bedrock or “Boulder Clay” in the lower part. The spiral pile design needs to fully consider corrosion resistance and vertical stability in soft soil.
Hydrological conditions: The site is close to the Corrib River/Atlantic Ocean, with a high groundwater level, and is significantly affected by tides. Construction needs to consider the impact of water level changes on the stability of the pile holes and the performance of construction equipment.
Environmental and cultural restrictions:
Environmental sensitive areas: Adjacent to special protected areas and special protected zones, mud pollution needs to be avoided. The advantage of spiral piles not requiring soil transportation is significant.
Urban environment: The construction site may be restricted, adjacent to historical buildings, and strict control of vibration and noise is required. The low noise and small vibration characteristics of spiral pile construction are suitable for this.