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- 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"
- 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
- Frost protection - void form thickness design | Eng-Tips
Hi all, this may be old to someone but i need your input on frost heave design for my foundation I'm designing an unheated structural slab supported on piles Design depth of frost penetration is 2700mm from soil report I'm going to use Dow ethaform void form but i dont know how to calculate
- Slab on grade -thickened edge subject to frost | Eng-Tips
I am designing a thickened edge slab for a garage 28'w x 36'l I am able to calculate the required thickness but have unique site conditions (clay soil, subject to freeze thaw (frost) action)and am looking for additional design considerations criteria any help?
- Frost Protection for Interior Footings | Eng-Tips
If the building is heated there is no need to frost protect interior footings On the other hand, if the structure is an unheated warehouse, then they should be protected just as exterior footings are Thanks for the response
- Lateral Pressure from Frost? | Eng-Tips
Is there a prescribed method for designing against lateral frost pressure? How does the magnitude of pressure exerted by frost compare with hydrostatic pressure? I am considering various causes for cracking in CMU basement walls I have heard that there has been an above-average occurrence of
- 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
- Frost line consideration for walkout basement | Eng-Tips
Hello, What is your opinion regarding the bottom of new foundation for the basement walkout stair? Creating a walkout for the basement will affect the frost line Should I start counting the required 36" from the bottom of the stairs? In addition, the existing house foundation should not be
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