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  2. Pile integrity test - Wikipedia

    en.wikipedia.org/wiki/Pile_integrity_test

    Pile integrity testing using low-strain tests such as the TDR (Transient Dynamic Response) method, is a rapid way of assessing the continuity and integrity of concrete piled foundations. The test measures: pile length, or depth to anomalies; pile head stiffness; pile shaft mobility, which is dependent on pile section and concrete properties

  3. Dynamic load testing - Wikipedia

    en.wikipedia.org/wiki/Dynamic_load_testing

    Dynamic load testing (or dynamic loading) is a method to assess a pile's bearing capacity by applying a dynamic load to the pile head (a falling mass) while recording acceleration and strain on the pile head. Dynamic load testing is a high strain dynamic test which can be applied after pile installation for concrete piles. For steel or timber ...

  4. High strain dynamic testing - Wikipedia

    en.wikipedia.org/wiki/High_strain_dynamic_testing

    These sensors are connected to an instrument (such as a pile driving analyzer), that records, processes and displays data and results. As long as the wave travels in one direction, force and velocity are proportional and related by the expression F = Zv, where: Z = EA/c is the pile impedance; E is the pile material modulus of elasticity

  5. 2 Delta attendants fail breathalyzer test before ... - AOL

    www.aol.com/news/2-delta-attendants-fail...

    In the U.S., the Federal Aviation Administration recommends eight hours between drinking and flying and that employees be removed from their duties if their blood alcohol concentration registers 0 ...

  6. Static load testing - Wikipedia

    en.wikipedia.org/wiki/Static_load_testing

    Bi-Directional Static Load Test is a steadfast Maintained Load Test option for both large and small diameter piles that is widely used in the market. The main difference between a top-loaded maintained load test and a Bi-Directional is the location of the jack. One of the types of bi-directional method is YJACK method. [4]

  7. NYT ‘Connections’ Hints and Answers Today, Tuesday, January 7

    www.aol.com/nyt-connections-hints-answers-today...

    2. A small or unspecified number of items. 3. Phrases you might see on the cover of something. 4. The words in this category are often used in repetitive phrases/expressions.

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  9. Deep foundation - Wikipedia

    en.wikipedia.org/wiki/Deep_foundation

    A pile or piling is a vertical structural element of a deep foundation, driven or drilled deep into the ground at the building site. Deep foundations of The Marina Torch, a skyscraper in Dubai. There are many reasons that a geotechnical engineer would recommend a deep foundation over a shallow foundation, such as for a skyscraper.