Table 6 Evaluation standard for Frost-heaving of sandy Soil.
Soil type | Average FHDR rate η(%) | Frost-heaving registration | Frost-heaving category |
|---|---|---|---|
Sandy soil | η ≤ 1 | Ⅰ | No frost-heaving |
1 ≤ η ≤ 3.5 | Ⅱ | Weak frost-heaving | |
3.5 ≤ η ≤ 6 | Ⅲ | frost-heaving | |
6 ≤ η ≤ 12 | Ⅳ | Strong frost-heaving | |
η > 12 | Ⅴ | Extra Strong frost-heaving |
