Top or Bottom of Footing? - Foundation engineering | Eng-Tips 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 case the soil expands (or rather the moisture freezes and expands within the soil matrix) and dislocates the footing
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
Is Frost Depth Always Required? | Eng-Tips No, frost depth is not always required if what you are supporting can withstand the movement However, for most pipe racks we have designed we have gone to frost depth
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 depth | Eng-Tips Hi guys! How many of you take in account the frost line depth while defining the foundation depth? Im asking this couse for my country wich is relativly warm, has mild winters rearly under 0"C for no longer then 7 days, minimum foundation depth is 80cm below finished ground level Converstaing
Frost box? | Eng-Tips A "Frost box" is probably a term for a variation (enhancement) of the sheet insulation over the pipe, where vertical insulation is placed along the pipe to better protect the pipe contain the heat
Floating slab on grade detail at exterior door | Eng-Tips 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 either a short foundation stem wall (frost wall I guess you guys and or gals call it up north) or directly on the footing
How is frost depth determined calculated? - Eng-Tips If frost depth is determined for a county, how many tests do they perform before the county is satisfied with their estimate of frost depth? Is climate change taken into account in frost depth calculations? It seems to me that there are a ton of variables that could affect frost depth, so am just curious how these numbers are typically determined
Structural engineering general discussion - Eng-Tips Frost heaving occurs as a result of ice formation around small particles of soil causing an expansion in the mass This can occur in any location provided the soil or substrate below does not readily accomodate this expansion due to large void spaces
LPILE and frost - Foundation engineering | Eng-Tips I am modeling the upper frost layer in LPile by making the lateral resistance close to zero (I am using the actual weight of the soil) LPILE runs a report with the warning that my phi value is outside the range My question is, can the output still be trusted for everything else even if