人工冻结土体冻胀融沉的模型试验

在分析人工冻结土体与自然冻结土体的冻结差异、比较国内外土体冻融模型试验装置的基础上，介绍了所研制的人工冻结土体冻胀融沉模型试验装置及其应用情况．并利用该试验装置对徐州地区常见的粘土进行了冻结试验，检验了该试验装置的可靠性和实用性；得出了人工冻结土体在冻融过程中土体在垂直方向上的冻胀远小于它在该方向上的融沉等几点结论

Model Experiment of Frost Heave and Thawing Settlement of Artificially Frozen Soils

Based on analysing the differences between artificially frozen soils and naturally frozen soils and comparing the present testing devices for the study of frost heave and thawing settlement at home and abroad, a new device for studying the frost heave and thawing settlement of artificially frozen soil was developed. This device has been applied to test the frost heave and thawing settlement of clay often seen in Xuzhou, and the result proves that it is reliable and useful. Meanwhile, some conclusions such as the frost heave in vertical direction is much smaller than the thawing settlement in the same direction have been drawn.