Ecological Retaining Wall for High-Steep Slopes: A Case Study in the Ji-Lai Expressway, Eastern China

Table 1

Subsoil main properties.

Sampling depth (m)	Water content (%)	Dry density (g·cm^−3)	Void ratio	Peak strength of consolidated quick shear		Strength of vane shear test (kPa)	Heavy compaction test
				Friction angle (°)	Cohesion (kPa)		Optimum moisture content (%)	Maximum dry bulk density (kg·m^−3)
5	2.9	1.41	0.93	17.6	34	34.6	14.7	19.1
10	15	1.47	0.81	22.4	34	36.1	14.7	19.3
15	4.3	1.50	0.74	25.4	38	39.2	14.6	19.3