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  2. Frost line - Wikipedia

    en.wikipedia.org/wiki/Frost_line

    The frost line—also known as frost depth or freezing depth—is most commonly the depth to which the groundwater in soil is expected to freeze. The frost depth depends on the climatic conditions of an area, the heat transfer properties of the soil and adjacent materials, and on nearby heat sources.

  3. Rubble trench foundation - Wikipedia

    en.wikipedia.org/wiki/Rubble_trench_foundation

    To construct a rubble trench foundation a narrow trench is dug down below the frost line. The bottom of the trench would ideally be gently sloped to an outlet. Drainage tile, graded 1":8' to daylight, is then placed at the bottom of the trench in a bed of washed stone protected by filter fabric. The trench is then filled with either screened ...

  4. Ground freezing - Wikipedia

    en.wikipedia.org/wiki/Ground_freezing

    Soil contaminated with radioactive elements that leaked from Japan's Fukushima Daiichi nuclear power plant was contained through ground freezing. [1]A project in Boston known as the Big Dig used ground freezing during some of its tunneling, to allow its wide tunnels to be built under or through soil that supported existing infrastructure that would have been difficult or expensive to support ...

  5. An Underground Greenhouse Is the Secret to Year-Round ... - AOL

    www.aol.com/underground-greenhouse-secret-round...

    For instance, the frost depth where he lives is 18 inches below ground, so he would recommend digging to 36 inches. This ensures that the ground (and your plants) won’t freeze during extremely ...

  6. Foundation (engineering) - Wikipedia

    en.wikipedia.org/wiki/Foundation_(engineering)

    Shallow foundations of a house versus the deep foundations of a skyscraper. Foundation with pipe fixtures coming through the sleeves. In engineering, a foundation is the element of a structure which connects it to the ground or more rarely, water (as with floating structures), transferring loads from the structure to the ground.

  7. Frost heaving - Wikipedia

    en.wikipedia.org/wiki/Frost_heaving

    Photograph taken 21 March 2010 in Norwich, Vermont. Frost heaving (or a frost heave) is an upwards swelling of soil during freezing conditions caused by an increasing presence of ice as it grows towards the surface, upwards from the depth in the soil where freezing temperatures have penetrated into the soil (the freezing front or freezing boundary).

  8. Holiday forecast: Dreaming of a white Christmas is better ...

    www.aol.com/holiday-forecast-dreaming-white...

    Cold weather advisories were in effect across portions of New York and Pennsylvania, while freeze warnings and frost advisories were issued for portions of southeast Georgia and north Florida ...

  9. Geotechnical engineering - Wikipedia

    en.wikipedia.org/wiki/Geotechnical_engineering

    Boston's Big Dig presented geotechnical challenges in an urban environment. Precast concrete retaining wall A typical cross-section of a slope used in two-dimensional analyzes. Geotechnical engineering, also known as geotechnics, is the branch of civil engineering concerned with the engineering behavior of earth materials.