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原文传递 Mathematical Model of Frost Heave and Thaw Settlement in Pavements; Final rept

题名：	Mathematical Model of Frost Heave and Thaw Settlement in Pavements; Final rept
作者：	Guymon, G. L.; Berg, R. L.; Hromadka, T. V.
关键词：	Army corps of engineers; Comparison; Errors; Estimates; Freezing; Frost; Heat; Highways; Integration; Moisture; One dimensional; Parameters; Penetration; Soils; Uncertainty; Mathematical models; Pavements; Frost heave; Thawing
摘要：	Since 1975 the U.S. Army Corps of Engineers, the Federal Highway Administration and the Federal Aviation Administration have been working cooperatively to develop a mathematical model to estimate frost heave and thaw weakening under various environmental conditions and for various pavement designs. A model has been developed. It is a one-dimensional representation of vertical heat and moisture flux, is based on a numerical solution technique termed the nodal domain integration method, and estimates frost heave and frost penetration reasonably well for a variety of situations. The model is now ready for additional field evaluation and implementation in appropriate cases. The main objectives of this report are: (1) to describe the model, FROST, including modeling uncertainties and errors; (2) to summarize recent comparisons between measured and computed values for frost heave and frost penetration; and (3) to describe parameters necessary for input into the model. Frost heave, Numerical methods Frost-susceptible soil, Pavements, Mathematical model, Soil freezing Heat and moisture, Soil thawing. Transport in soils.
总页数：	134p
报告类型：	科技报告