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Cone Penetration Test

Cone penetration testing (CPT) is an investigative method used to examine and record the geotechnical engineering properties of soils. A universally trusted soil investigation method, geotechnical cone penetration tests can be deployed from the ground surface with a variety of rigs, or over water from barges and platforms.

The data extracted from a cone penetration test can be used in site assessments to determine the liquefaction-triggering resistance present in each layer of soil. CPTs are used extensively across a range of industries for a wide spectrum of marine and land applications, such as:

  • Geoenvironmental investigations to determine foundation depth, characterise contamination and map subsurface obstructions

  • Hydrogeological applications like water resource investigations and determining hydraulic behaviour

  • Geohazard studies such as investigating shafts, mines and natural cavities

  • Quality control checking earthworks and compaction testing.  

Cone penetration testing is a cost-effective investigative method that provides a broad spectrum of information and delivers high volumes of data with less environmental impact than other testing methods. Further benefits include:

  • Cone penetration tests can be deployed on both land and water

  • Low impact testing that provides a continuous subsurface picture

  • Provides big data in real time with rapid acquisition for reliable site characterisation

  • Cone penetration tests meet universal quality standards and design codes.

Australia’s premier geotechnical drilling contractor, Numac provides versatile cone penetration testing with a range of modular systems and sensors available to deliver an extensive range of data and information with a single deployment.