Cone Penetration Test (CPTu) Processing Software – NovoCPT

NovoCPT is a powerful, user-friendly geotechnical software for processing and interpretation of cone penetration test data. In this test, data is typically collected at every 20 to 30 mm depth interval, and therefore, the results of CPT test is a large digital dataset. Processing this data requires a computer program. Using NovoCPT you can accomplish the following main tasks:

• Correlation of CPT data to Over 35 Soil Parameters

• Soil Behaviour Types (3 methods)

• Soil Liquefaction Analysis

• Pad/Strip Footing Bearing Capacity Analysis (5 methods)

• Pad/Strip Footing Settlement Analysis (elastic & consolidation)

• Pile Bearing Capacity Analysis (LCPC)

​

​

​

Correlating CPT Data to Soil Parameters

Permeability coefficient K:

• Robertson et al. 1986

Shear strength Su:

• Nk

• Nkt

• Nke

Clay Sensitivity St:

• Robertson and Campanella 1988

• Rad and Lunne 1986

• Schmertmann

Clay undrained Young’s modulus Es:

• Duncan and Buchihmami 1976

Overconsolidation ratio OCR:

• Powel et al. 1998

• Lunne et al. 1989

• Mayne 2005

Sand internal friction angle Φ:

• Kulhawy and Mayne 1990

• Hatanaka and Uchida 1996

• Robertson and Campanella 1983

• Sunneset et al. 1989

• Mayne 2005

Depth correction factor Rd:

• Seed and Idriss 1971 (tri-linear function)

Overconsolidation ratio OCR:

• Powel et al. 1998

• Lunne et al. 1989

• Mayne 2005

Shear wave velocity Vs:

• Mayne 2006c (all soils)

• Hegazy and Mayne 1995 (all soils)

• Baldi 1989 (sands)

• Mayne and Rix 1995 (clays)

Fines content estimation:

• Robertson and Fear 1995 (Fc=1.75*IC3-3.7)

Void ratio e

• e = 1.152 – 0.233 Log(qc1) + 0.043 Log(OCR)

Unit Weight γ:

• Soil Behaviour Type values

• Robertson et al. 1986

• Manual data entry

Clay & sand at-rest earth pressure Ko:

• Kulhawy and Mayne 1990

Constrained modulus M:

• Robertson 2009

Overconsolidation ratio OCR:

• Powel et al. 1998

• Lunne et al. 1989

• Mayne 2005

Equivalent SPT N60:

• Jefferies and Davis 1993