Cone penetration testing for continuous soil profiling, with pore-water pressure measurement by piezocone (CPTU).
A cone pushed into the ground at a steady rate records tip resistance and sleeve friction continuously with depth. With a piezocone (CPTU), it also records pore-water pressure. The result is a detailed soil profile: layering, soil behaviour type, and parameters such as undrained shear strength and density.
Site investigation for buildings, roads and embankments, soft-clay and reclamation sites, settlement assessment and ground-improvement checks. CPT works best in soft to medium soils and is often paired with boreholes to confirm soil types.
Your site, the structure and what the design needs to know.
Test locations, methods and the reporting you need.
Testing, drilling and sampling on site by our field team.
Logs, plots and test results for your engineer.
A fully hydraulic, tracked rig that uses its own weight for reaction, built for cone penetration testing on soft and difficult ground.
| Rated penetration force | 200 kN |
|---|---|
| Rated lifting force | 250 kN |
| Stroke | 1,100 mm |
| Chassis | Tracked crawler, 600 mm tracks |
| Weight | 20 t including counterweight |
| Cone sizes | 10 cm² and 15 cm² |
| Power | 88 kW |
Supplier catalogue specification.
CPTU adds a pore-pressure sensor to the cone. It shows drainage behaviour and helps identify thin clay and sand layers.
It depends on the ground: dense sand, gravel or rock stop the push. We plan depth and locations with you for each site.
Usually yes. Boreholes give samples to confirm soil types and for laboratory testing; CPT fills in the detail between them.
Continuous profiling of tip resistance and sleeve friction with depth, for soil layering and design parameter…
CPT with pore-water pressure measurement, for drainage behaviour and thin-layer detection.
