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  2. Geotechnical investigation - Wikipedia

    en.wikipedia.org/wiki/Geotechnical_investigation

    Shelby Tube Sampler. Utilized in the 'Standard Practice for Thin-Walled Tube Sampling of Soils for Geotechnical Purposes' (ASTM D 1587 [5]). This sampler consists of a thin-walled tube with a cutting edge at the toe. A sampler head attaches the tube to the drill rod, and contains a check valve and pressure vents.

  3. Standard penetration test - Wikipedia

    en.wikipedia.org/wiki/Standard_penetration_test

    The test uses a thick-walled sampling tube, with an outside diameter of 5.01 cm (2 in) and an inside diameter of 3.5 cm (1.375 in), and a length of at least 60 cm (24 in). The sampling tube is driven into the ground at the bottom of a borehole by blows from a hammer with a mass of 63.5 kg (140 lb) falling a distance of 75 cm (30 in). The sample ...

  4. Thin walled beams - Wikipedia

    en.wikipedia.org/wiki/Thin_walled_beams

    A thin walled beam is a type of beam (structure) that does not have a solid cross sectional area. The cross section of thin walled beams is made up from thin panels connected together. Typical closed sections include round, square, and rectangular tubes. Open sections include I-beams, T-beams, L-beams, and so on.

  5. Drill pipe - Wikipedia

    en.wikipedia.org/wiki/Drill_pipe

    Drill pipe, is hollow, thin-walled, steel or aluminium alloy piping that is used on drilling rigs. It is hollow to allow drilling fluid to be pumped down the hole through the bit and back up the annulus. It comes in a variety of sizes, strengths, and wall thicknesses, but is typically 27 to 32 feet in length (Range 2).

  6. Pro Picks: Eagles will cruise past the Commanders and ... - AOL

    www.aol.com/pro-picks-eagles-cruise-past...

    CHARGERS: 23-20 Line: Chiefs minus 3 Mahomes plans to play with a mild high-ankle sprain as the Chiefs push toward a No. seed in the AFC. Kansas City is coming off its first win by more than one ...

  7. Purchase rates for Monday, November 25, 2024 - AOL

    www.aol.com/finance/mortgage-and-refinance-rates...

    Average mortgage rates open the Thanksgiving holiday week higher as of Monday, November 25, 2024, with 30-year benchmark terms at just under 7.00%.

  8. Archaeologists Dug Up a Royal Grave—and Found a Secret ...

    www.aol.com/lifestyle/archaeologists-dug-royal...

    Archaeologists discovered a wooden Celtic burial chamber inside a southern Germany burial mound. Dated to between 620 and 450 B.C., these mounds were reserved for high-ranking individuals.

  9. Radial stress - Wikipedia

    en.wikipedia.org/wiki/Radial_stress

    For cylindrical pressure vessels, the normal loads on a wall element are longitudinal stress, circumferential (hoop) stress and radial stress. The radial stress for a thick-walled cylinder is equal and opposite to the gauge pressure on the inside surface, and zero on the outside surface. The circumferential stress and longitudinal stresses are ...

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