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  2. Standard penetration test - Wikipedia

    en.wikipedia.org/wiki/Standard_penetration_test

    Symbol used in drawings Standard penetration test N values from a surficial aquifer in south Florida. The standard penetration test (SPT) is an in-situ dynamic penetration test designed to provide information on the geotechnical engineering properties of soil. This test is the most frequently used subsurface exploration drilling test performed ...

  3. Spt function - Wikipedia

    en.wikipedia.org/wiki/Spt_function

    The spt function (smallest parts function) is a function in number theory that counts the sum of the number of smallest parts in each integer partition of a positive integer. It is related to the partition function. [1] The first few values of spt(n) are: 1, 3, 5, 10, 14, 26, 35, 57, 80, 119, 161, 238, 315, 440, 589 ... (sequence A092269 in the ...

  4. Talk:Standard penetration test - Wikipedia

    en.wikipedia.org/wiki/Talk:Standard_penetration_test

    The first 10cm layers has N-value of 3 so if there were a 30cm layer with N-value of 3, the SPT can reach the bottom of the layer with three blows, and the first should stop at 10cm depth. This is what I mean by that the first layer has N-value of 3. The middle layer is empty, and the bottom layer has N-value of 3 as well.

  5. Cone penetration test - Wikipedia

    en.wikipedia.org/wiki/Cone_penetration_test

    One advantage of CPT over the Standard Penetration Test (SPT) is a more continuous profile of soil parameters, with data recorded at intervals typically of 20 cm but as small as 1 cm. Manufacturers of cone penetrometer probes and data acquisition systems include Hogentogler, which has been acquired by the Vertek Division of Applied Research ...

  6. California bearing ratio - Wikipedia

    en.wikipedia.org/wiki/California_bearing_ratio

    The CBR is expressed as a percentage of the actual load causing the penetrations of 2.5 mm or 5.0 mm to the standard loads on crushed stone. A load penetration curve is drawn. The load values on standard crushed stones are 1,370 kgf (13.44 kN) and 2,055 kgf (20.15 kN) at 2.5 mm and 5.0 mm penetrations respectively. [citation needed]

  7. Missing Hawaiian woman crossed freely into Mexico, Los ...

    www.aol.com/news/missing-hawaiian-woman-crossed...

    Hannah Kobayashi, a Hawaiian woman who has been missing for weeks, walked freely into Mexico just after noon on Nov. 12, the Los Angeles Police Department said on Monday. The department said the ...

  8. Drone sightings: A timeline of the reports, arrests and calls ...

    www.aol.com/news/drone-sightings-timeline...

    Sen. Cory Booker (D-N.J.) posts a letter urging several agencies to investigate the drone sightings including the FBI, Department of Homeland Security, and the FAA. Dec. 11:

  9. Standard temperature and pressure - Wikipedia

    en.wikipedia.org/wiki/Standard_temperature_and...

    The new value is the mean atmospheric pressure at an altitude of about 112 metres, which is closer to the worldwide median altitude of human habitation (194 m). [ 10 ] Natural gas companies in Europe, Australia, and South America have adopted 15 °C (59 °F) and 101.325 kPa (14.696 psi) as their standard gas volume reference conditions, used as ...