predicting frost depth, especially their occurrence and under a snow cover. It also does a
good job at reproducing the diurnal freeze/thaw cycles that occur in the spring and fall.
These are very important to mobility considerations as they result in slippery surface
conditions.
South Royalton, VT 1990-91
measured
FASST
snow
0.3
2.00
1.50
0.2
1.00
0.1
0.50
0.00
0
33175
33195
33215
33235
33255
33275
33295
33315
33335
33355
Julian Day
Figure 6.2 Comparison of FASST calculated frost depth and measured values as a
function of soil depth and snow depth.
6.3 References
Guyman, G.L., R.L. Berg, and T.V. Hromadka (1993) Mathematical Model of Frost
Heave and Thaw Settlement in Pavements. U.S. Army Cold Regions Research and
Engineering Laboratory, CRREL Report 93-2.
Peck, L. and K. O'Neill (1997) Frost Penetration in Soil with an Inclusion of Sand:
Dependence on Soil Moisture Content and Winter Severity, Canadian Geotechnical
Journal, V. 34, No. 3, p. 368383.
57
Previous Page
