Driven precast concrete and steel tubes can be installed across all construction sectors. Typically installed on sites where the soil profile is alluvial and consist of soft soils with a high-water table that might be problematic for traditional bored piling. Piles are manufactured and installed in sections and driven to a set and are therefore suitable for sites with variable ground conditions.
Precast concrete and steel tube piles are driven into the ground by a top driven hydraulic pile hammer, which compacts the surrounding soil as the pile is driven to depth. Piles are driven to a design depth or resistance (set) that will enable them to carry the required load.
Van Elle’s fleet of Junttan piling rigs can install driven piles with a maximum section length of 14m. Piles can be installed to deeper depths to achieve the set criteria through joining sections by means of a mechanical interlocking joint.
Van Elle has developed the proprietary Vemech system. The Vemech system utilises a low ground bearing pressure rig that can install 2.5m to 4m long precast concrete pile sections and up to 4m long steel piles. Key advantages of the Vemech system are the flexibility to deal with varying pile lengths and significantly reduce overall wastage on materials, due to the short precast pile lengths and the reduction in pile mat thicknesses and associated temporary works due to the lightweight rig