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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. Cylinder stress - Wikipedia

    en.wikipedia.org/wiki/Cylinder_stress

    For the thin-walled assumption to be valid, the vessel must have a wall thickness of no more than about one-tenth (often cited as Diameter / t > 20) of its radius. [4] This allows for treating the wall as a surface, and subsequently using the Young–Laplace equation for estimating the hoop stress created by an internal pressure on a thin-walled cylindrical pressure vessel:

  5. 12 Collectible Toys From the 1970s Worth More Than You Think

    www.aol.com/12-collectible-toys-1970s-worth...

    Whether due to their nostalgic appeal, rarity, or cult status, here are 12 collectible toys from the 1970s that are worth far more (think in the high thousands) than you might imagine. 1. Star ...

  6. 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.

  7. 10 Vintage Porcelain Dolls That Are Worth a Fortune

    www.aol.com/10-vintage-porcelain-dolls-worth...

    Price on eBay: $8,500 Porcelain dolls don’t have to be more than 2 feet tall to be worth a lot of money. This little lady stands only 15 1/2 inches tall, but her ornate details and impressive ...

  8. Connecticut man allegedly killed a mother, her infant son ...

    www.aol.com/connecticut-man-allegedly-killed...

    A Connecticut man who allegedly killed a woman and her infant son in November targeted the woman because she owed him $400 for renting a vehicle of his, arrest reports said on Monday.

  9. Jacketed fuel injection pipe - Wikipedia

    en.wikipedia.org/wiki/Jacketed_fuel_injection_pipe

    This jacket is usually metallic in construction and can either be a thin walled tube or convoluted hose. In the event of a burst in the injection pipe the leaking fuel will be collected by the jacket and piped away safely to an alarm device to notify operators of a potential problem.