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  1. "Top" or "Bottom" of Footing? | Eng-Tips

    Apr 5, 2008 · Frost depth always has been and should be to the bottom of the footing. You are trying to avoid a condition where frost occurs in the soil directly under a footing and in which …

  2. Frost Heave Calculation | Eng-Tips

    Jan 10, 2018 · Frost heave can easily be several inches in northern states with frost-susceptible (silty) soils and a shallow water table or just poor drainage. On the other hand, dry, clean, …

  3. Drilled Pier Frost Heave | Eng-Tips

    Feb 11, 2025 · Hello, I am currently designing concrete drilled piers, and per the geotech report, the recommendations incur a 1600 psf design stress for potential frost heave. The …

  4. Can foundation weight allow avoidance of frost depth? | Eng-Tips

    Mar 3, 2011 · A contractor is suggesting the use of 1ft deep, very wide concrete slab to support heavy rotating equipment. The local jurisdiction has a required frost depth 42in. Can a very …

  5. Stoops | Eng-Tips

    Mar 7, 2008 · Stoops are any sort of entrance entity that is situated adjacent to building exits. They serve two main purposes: 1. Provide proper surfaces to exit on, such as a landing, …

  6. Exterior Large Equipment Pad with deep frost depths | Eng-Tips

    Jan 7, 2021 · Frost heave isn't really caused by just the moisture in the soil freezing (and the subsequent small volume increase). It becomes an issue when ice lensing happens. This is …

  7. Floating slab on grade detail at exterior door | Eng-Tips

    Oct 26, 2018 · I will probably continue to show a floating slab with an expansion joint between the slab and the typical exterior wall, and then show a downturn thickened slab edge bearing on …

  8. Sources for Frost Depth Values | Eng-Tips

    Mar 1, 2022 · Hello all, this is my first post here so please bear with me. Where do you go to find accurate frost depth/line values? At my job, we often have to design footers/foundations …

  9. Exterior Equipment Concrete Pad | Eng-Tips

    Feb 26, 2025 · The frost jacking happens due to ice lens formation at the boundary btwn cold enough and not cold enough. I don't know about ice lens formation, but I guess my thinking …

  10. Frost depth | Eng-Tips

    Oct 17, 2006 · What happen if you cannot achieve frost depth on retaining wall. Can you put helical piers underneath the wall to counteract lifting from the frost? How do I know how much …