CONE PENETRATION TESTING

CPT

About CPT

Central Alliance’s cone penetration testing (CPT) crawler rig is capable of tracking through most terrains. Offering a 200 kN push from a stable platform and able to average over 100 m of data acquisition per day, its 1.7 m jack legs ensure a level push on the most precipitous of terrains. The rig includes a wireless remote control, enabling the operator to safely track the rig from outside with maximum visibility.

Piezocone penetration testing (CPTu) has many advantages over traditional site investigation techniques. CPTu has a very high level of accuracy, taking readings from undisturbed, in-situ soil. With an average resolution of 2 cm and capable of averaging over 100 m of testing per day, it is not a surprise that CPTu is being used by the industry more than ever.

About CPT

Central Alliance’s cone penetration testing (CPT) crawler rig is capable of tracking through most terrains. Offering a 200 kN push from a stable platform and able to average over 100 m of data acquisition per day, its 1.7 m jack legs ensure a level push on the most precipitous of terrains. The rig includes a wireless remote control, enabling the operator to safely track the rig from outside with maximum visibility.

Piezocone penetration testing (CPTu) has many advantages over traditional site investigation techniques. CPTu has a very high level of accuracy, taking readings from undisturbed, in-situ soil. With an average resolution of 2 cm and capable of averaging over 100 m of testing per day, it is not a surprise that CPTu is being used by the industry more than ever.

The Central Alliance Cone Penetration Tesing (CPT) rig testing in a field by the sea.

PROJECTS

Central Alliance has conducted Cone Penetration Testing on a variety of sites across the UK, including work on projects with national significance such as HS2.

PROCESSING

Central Alliance processes the CPT data in-house, producing bespoke reports to suit our clients needs. The processed results are provided in AGS and Excel formats.

INSTRUMENTATION

We provide a variety of probes so can tailor site specific testing suitable for a range of sites.

Our current range includes:
• 10cm2 CPT Piezocone (Subtraction type)
• 15cm2 CPT Piezocone (Subtraction type)
• Ball Shaped Tip for 10cm2 Piezocone
• Magnetometer

4 MAIN CPT PARAMETERS

  • Cone end resistance (qc)
  • Friction (fs)
  • Pore pressure (u2)
  •  Inclination

Included with Standard CPTu Testing

DISPLAYING YOUR CPT DATA

Central Alliance can produce a range of report styles to provide data to suit your project.