Ball Penetrometer, or “full flow penetrometers”, have been designed to give a projected area 8 times that of the cone shaft.
Advantage of using Ball Penetrometers to standard CPT cones include:
- Minimal correction to the measured penetration to provide net resistance
- Improved accuracy and resolution in soft soils (due to the larger projected area)
Probedrill assisted with the early testing of the Ball and T-Bar penetrometers, in collaboration with the University of Western Australia (UWA). We now use a more robust Ball Penetrometer supplied by GeoMil.