Table 2.

The physical and mechanical property indicators of each soil type.

No.	Soil type	Water content (%)	Density (g/cm3)	Porosity	Liquid limit (%)	Plastic limit (%)	Internal friction angle (°)
1	Silty clay	23.6–32.9	1.78–1.95	0.760–0.977	28.9–38.2	16.7–24.8	17–20
2	Silt	22.6–29.6	1.68–2.00	0.656–0.972	25.6–38.2	16.7–22.4	23–25
3	Fine sand	23.1–25.6	1.82–1.98	0.730–0.983	–	–	24–28
4	Medium sand	21.3–24.2	1.81–2.00	0.721–0.984	–	–	30–34