frost line


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frost line

The depth of frost penetration into the soil.It varies from area to area,depending on the soil quality in a particular location, but can average 3 to 4 feet below the surface. Building foundations should penetrate below the frost line in order to avoid the shifting caused by frost heaving. Many local building codes allow an exception with the use of a frost-protected shallow foundation, which uses insulation and drainage techniques to raise the frost line to just below the surface.

References in periodicals archive ?
Unlike traditional ramps, these don't require a permanent frost footing where holes are dug and posts are set below the frost line.
Samples produced by varying both the frost line height and the extrusion temperature were studied in order to determine which processing conditions produce films with the most desirable optical properties.
Basements are unnecessary because of the high water table and high frost line.
Depths of bury were generally a minimum of 5-feet, ensuring that the frost line was exceeded.
We hired a backhoe to excavate a hole near our well, deep enough to put the tank under 18 inches of soil, which in our area is well below the frost line.
If I had this type of frost line on opening day, I would tell (manager Robin Ventura) that he couldn't play.
The latter is a five-sensor system with a high-speed, servo-controlled, air-regulation valve that performs split-second corrections in bubble size at or below the frost line.
When factoring in the frost line that runs close to 28-feet deep directly under the cold storage facility year-round, the result is a ground structure that resembles some of the toughest rock formations.
If you cannot get the rods deep enough-below the frost line and to the water table-install a cluster of shorter rods.
Designed to monitor, record and alarm the progression of subterannean temperatures around burried structures like gas and water mains, it an ideal system for anyone seeking to monitor and alarm the progression of the frost line in winter.
The cold causes the earth to harden and freeze, yet deep within what lies under the frost line apparently hidden are chipmunks, gophers, mice and other small animals.