
- "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 … 
- 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, … 
- 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 … 
- Crushed stone size limitation for non-expansive frostfree fill- Jun 4, 2008 · Hi, Guys, Need help here. I remember there was a thread before, which discusses about the crushed stone size for use as non-expansive frostfree fill. But I... 
- 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 … 
- How to insulate a shallow water line | Eng-Tips- Oct 6, 2008 · The frost line here is approximately 42" and the water within the sprinkler system will not be flowing unless there is a fire in the building, so we believe that there is a real pottential … 
- Frost depth consideration in existing rock layer | Eng-Tips- Feb 2, 2004 · If I propose to install a strip footing of reinf. concrete for live and dead loads such that design allowable soil bearing capacity is 8000 psf ...do i have to be concerned about the … 
- 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 … 
- sonotube foundation for a slab on grade | Eng-Tips- Sep 29, 2019 · Would the current system present issues where as a result of frost heave the slab will function more as a beam / footing system since the sonotubes will provide resistance to … 
- Frost line depth | Eng-Tips- Mar 12, 2018 · Hello All, How can I determine the frost line depth for a project in Virginia? All I can find in the code is in R301.2 which leaves in up to the locality. The online version of the code is …