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  2. Piling - Wikipedia

    en.wikipedia.org/wiki/Deep_foundation

    Both the diameter of the pile and the depth of the pile are highly specific to the ground conditions, loading conditions, and nature of the project. Pile depths may vary substantially across a project if the bearing layer is not level. Drilled piles can be tested using a variety of methods to verify the pile integrity during installation.

  3. 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

  4. Larssen sheet piling - Wikipedia

    en.wikipedia.org/wiki/Larssen_sheet_piling

    Tongue Larssen - Tongue Larssens are up to 34 meters long and 80 centimeters wide. They have locks, which allow people to connect one profile to another vertically to create a sealed metal diaphragm wall. Transverse profiles can be in the shape of letters: S, Z, L or Ω where the trough can be of varying depth. [citation needed]

  5. Drywall - Wikipedia

    en.wikipedia.org/wiki/Drywall

    Various sized cuts of 1 ⁄ 2 in (13 mm) drywall with tools for maintenance and installation . Drywall (also called plasterboard, dry lining, [1] wallboard, sheet rock, gib board, gypsum board, buster board, turtles board, slap board, custard board, gypsum panel and gyprock) is a panel made of calcium sulfate dihydrate (), with or without additives, typically extruded between thick sheets of ...

  6. Drainage equation - Wikipedia

    en.wikipedia.org/wiki/Drainage_equation

    the permissible long term average depth of the water table (Dw) on the basis of agricultural drainage criteria; the soil's hydraulic conductivity (Ka and Kb) by measurements; the depth of the bottom of the aquifer (Di) the design drain spacing (L) can be found from the equation in dependence of the drain depth (Dd) and drain radius (r ...

  7. Olivier pile - Wikipedia

    en.wikipedia.org/wiki/Olivier_pile

    Implementation method of the Olivier Pile. 1. clockwise drilling. 2. required depth reached. 3. reverse drilling and at the same time fill the space with concrete (and reinforcement). 4. the formed pile. An Olivier Pile is screwed into the ground without vibration, the soil is displaced sideways. No soil is transported to the surface.

  8. Tieback (geotechnical) - Wikipedia

    en.wikipedia.org/wiki/Tieback_(geotechnical)

    Typically in the form of a horizontal wire or rod, or a helical anchor, a tieback is commonly used along with other retaining systems (e.g. soldier piles, sheet piles, secant and tangent walls) to provide additional stability to cantilevered retaining walls. [1]

  9. Crosshole sonic logging - Wikipedia

    en.wikipedia.org/wiki/Crosshole_sonic_logging

    By comparing the graphs from the various combinations of access tubes, a qualitative idea of the structural soundness of the concrete throughout the pile can be gleaned. A more advanced, higher-end analysis that creates a mock 3-dimensional graphical display of the concrete soundness throughout the pile is known as Crosshole Sonic Tomography .

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    deep foundation sheet pileslarssen sheet piling diagram