Study on Varying Characteristics of Temperature Field and Moisture Field of Shallow Loess in the Freeze-Thaw Period

Table 1

Basic physical index.

Sites	Dry density (g/cm^3)	Average moisture content (%)	Liquid limit (%)	Plastic limit (%)	Plasticity index
Luochuan	1.53	21.2	30.74	18.03	12.74
Tongchuan	1.50	18.5	29.71	17.75	11.96
Bin County	1.55	21.5	30.9	18.1	12.8