Cone Penetrometer

Cone Penetrometer

The Cone Penetrometer apparatus is an alternative method to the Casagrande Device in measuring the Liquid Limit of a soil sample (See:Atterberg Limits). It is usually considered to be a more scientific approach because it is based less upon human judgment. In this method, a sample is placed in a 55 mm diameter, 40 mm deep metal cup. A stainless steel cone weighing 80 g (including the shaft) and having a 30° angle is positioned so that its tip just touches the sample. The cone is released for 5 seconds so that it may penetrate the soil. The liquid limit is defined as the water content of the soil which allows the cone to penetrate exactly 20 mm during that period of time. Because it is difficult to obtain a test with exactly 20 mm penetration, the procedure is performed multiple times with a range of water contents and the results are interpolated.

ee also

*Atterberg Limits
*Casagrande Device
*Liquid Limit
*Cone Penetration Test


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Cone — This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article …   Wikipedia

  • Cone penetration test — A CPT truck operated by the USGS. The cone penetration test (CPT) is an in situ testing method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. It was initially developed in the 1950s at the… …   Wikipedia

  • Atterberg limits — The Atterberg limits are a basic measure of the nature of a fine grained soil. Depending on the water content of the soil, it may appear in four states: solid, semi solid, plastic and liquid. In each state the consistency and behavior of a soil… …   Wikipedia

  • Sediment Profile Imagery — (SPI) is an underwater technique for photographing the interface between the seabed and the overlying water. The technique is used to measure or estimate biological, chemical, and physical processes occurring in the first few centimetres of… …   Wikipedia

  • DCP — is a three letter abbreviation, which can have various meanings: Contents 1 Medicine 2 Chemistry 3 Information technology 4 Law Enforcement …   Wikipedia

  • CPT — abbr. Captain comp. Chief Programmer Team comp. Customer Provided Terminal econ. Carriage Paid To tech. Cone Penetrometer Test …   Dictionary of English abbreviation

  • испытания с помощью конического пенетрометра — — [http://slovarionline.ru/anglo russkiy slovar neftegazovoy promyishlennosti/] Тематики нефтегазовая промышленность EN cone penetrometer test …   Справочник технического переводчика

  • конусный пенетрометр — Прибор для определения несущей способности грунта дна моря [http://slovarionline.ru/anglo russkiy slovar neftegazovoy promyishlennosti/] Тематики нефтегазовая промышленность EN cone penetrometer …   Справочник технического переводчика

  • Drucksondierung — Die Drucksondierung (Cone Penetration Test, CPT) ist ein Sondierverfahren zur Baugrunderkundung, bei dem ein Messkopf mit kegelförmiger Spitze mit konstanter Geschwindigkeit über ein Gestänge in den Boden gedrückt wird. Gemessen wird im… …   Deutsch Wikipedia

  • Lunokhod programme — Lunokhod (Russian Луноход, Moonwalker ) 1 and 2 were a pair of by the Soviet robotic lunar rovers landed on the Moon in 1970 and 1973, respectively. They were in operation conterminously with the Zond series of flyby missions. The Lunokhod… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”