NationMaster - Encyclopedia: Cone penetration test

The (Dutch) Cone Penetration Test (CPT) is a test to measure the strength or bearing capacity of (soft) soils. It was developed in the 1950s at the Dutch Laboratory for Soil Mechanics. Today it's the most used method for soil investigation worldwide.

External link

Lab. voor Grondmechanica Delft, currently GeoDelft (http://www.geodelft.com/)

Results from FactBites:

Pile Info (3437 words)
	The preliminary soil classification based on CPT tests is thus mainly made on the basis of the relation between the cone resistance, the sleeve friction and the normal in situ stress conditions.
	Generally, the cone penetration test is not used for assessment of pile bearing capacity in cohesive soils.
	The blow count for 0.2 m penetration for dynamic probing type HfA is equal to the blow count for 0.3 m penetration for SPT performed in accordance with the European standard.

Pile - Wikipedia, the free encyclopedia (1114 words)
	Piles are used when the soil near the ground surface is not strong and the weight of the building must be carried by deeper soil layers.
	The use of a tripod rig to install piles is one of the more traditional ways of forming piles and although unit costs are generally higher than with most other forms of piling, it has several advantages which have ensured its continued use through to the present day.
	Where the bore has penetrated into clay it is often unnecessary to use lining tubes and the bore is advanced 'open hole'.

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