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- Frost Penetration and Movement | Eng-Tips
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 penetration if they are in non-frost susceptible soil
- When to Go Down to the Frost Depth - Eng-Tips
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 footings are placed at that depth but when it comes to the exterior stairs, they only go down 18” only!! The
- Can foundation weight allow avoidance of frost depth? | Eng-Tips
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 foundation (while still below the allowable bearing capacity of the soil) eliminate the need to go below the 42"
- Frost depth for turndown slab - Eng-Tips
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 foundations should be below the frost depth Even though the shack will put load on the turndown, the
- Frost protection - void form thickness design | Eng-Tips
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 better i will have ??? Anyone has design guide or manual or any detail reference, it would be appreciate
- Sources for Frost Depth Values - Eng-Tips
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 rapidly so as to get them to a costumer for the purposes of an estimate Because everything needs done ASAP, contacting
- Drilled Pier Frost Heave - Eng-Tips
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 also state that placing friction reducing material can be considered as an alternate option to prevent damage
- Exterior Large Equipment Pad with deep frost depths | Eng-Tips
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 horizontal layer of ice forms and continues to grow in thickness as water is drawn into the freezing layer through capillary action in the soil If you have non-frost susceptible soil (large granular fill), capillary
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