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The cone penetrometer is arguably the most widely used in-situ tool to obtain the soil stratigraphy and corresponding physical and mechanical properties.
This paper provides some recent updates on the interpretation of some key geotechnical parameters in an effort to develop a more unified approach. Extensive use is made of the normalized soil behaviour type (SBTn) chart based on normalized cone resistance (Qt) and normalized friction ratio (Fr).
The cone penetrometer test (CPT) is a versatile in situ test (Fig. 5.1) which has become a routine test for site investigations worldwide to characterize clays and sands.
The 10 cm2 cone is suitable for most applications. It is the industry standard and considered the reference penetrometer for field testing. Cones in the 5 cm2 to 15 cm2 range have been shown to produce consistent data in most soils, so corrections for different sizes are generally not needed.
Cone-penetration testing in geotechnical practice. Soil Mech Found Eng 46, 237 (2009). https://doi.org/10.1007/s11204-010-9072-x. Download citation. Published 18 February 2010. Issue Date November 2009.
CPT solutions. Cone penetration testing offers valuable data for various applications: Geotechnical: CPT provides information on the soil profile, which can be used to design foundations, provide quality control for ground improvement work or to check the condition of a levee or a dike, for example. Hydrogeological: to analyse the level and flow of groundwater or the interaction between ...
15 cm 2 cone penetrometers are typically pushed to depth by means of 10 cm 2 rods. Therefore, a transition in diameter will be present at a certain distance from the cone shoulder.
In situ cone-penetrometer tests at 11 stations in Norton Sound, Alaska, complement previous studies of geologic processes and provide geotechnical data for an analysis of sediment response to loading. Assessment of the penetrometer records shows that various geologic factors influence penetration resistance. On the Yukon prodelta, penetration resistance increases with the level of storm wave or ic
ASTM certified Dynamic Cone Penetrometer soil testing equipment - Made in the U.S.A. by Salem Tool Company. Shop Dual Mass and Single Mass DCP sets and parts.