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

    Nov 3, 2024 · 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 heavy …

  2. Footings for small cabin re:frost heave - Eng-Tips

    Feb 24, 2006 · Frost heave is going to be a problem. What is the frost depth in your cabin area? The US Army Corps of Engineers has some freeware for calculating frost depth, but the climate input data is …

  3. When to Go Down to the Frost Depth - Eng-Tips

    Nov 20, 2008 · I always hear that the footings have to be placed below the frost depth but does that apply to any footing? For a job where the local code indicates frost depth of 42”, all exterior bldg …

  4. Frost depth for turndown slab - Eng-Tips

    Aug 2, 2010 · I have virtually an unheated metal shack. It will sit on a slab on grade with a turndown. Is is necessary for the turndown to bear below the frost depth? In my mind, only unheated bearing …

  5. 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 recommendations …

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

    Jan 8, 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 when a …

  7. Frost protection - void form thickness design | Eng-Tips

    Oct 23, 2009 · Let say, for frost heave uplift of 100 kPa, from soil report, if using 100mm thickness void form, what is the pressure underneath of foundation and if using 200mm thickness void form, how …

  8. Frost Line for Grade Beam with Piles - Eng-Tips

    Jan 13, 2005 · If piles are driven, with a concrete grade beam poured over the pile cap, does the bottom of the grade beam have to be poured below the frost line, or having the piles driven below the frost …

  9. Frost Penetration and Movement | Eng-Tips

    Oct 25, 2009 · Frost penetration and frost depth effects are really two different animals. As OldestGuy indicated, even in very cold climates, they recognize that footings do not have to go full depth of frost …

  10. Pre-existing foundation not meeting required frost depth

    Nov 2, 2009 · The foundation is fine for additional load, but we will have to somehow "get" the frost depth (18" more). Any way to achieve this without physically adding depth - for example, any way to …