Research on Shear Strength Parameters of the Silty Fine Sand and the Rounded Gravel Layers in Nanning City

Table 2

Results of the direct shear test on the silty sand layer.

Results	Test site number	Moisture content (%)	Natural density (g⋅cm^−3)	Void ratio	c (kPa)	φ (°)	Compactness
Xijin Station	1	13.9	1.69	0.6	0.07	21.3	Loose
	2	10.9	1.83	0.79	0.58	23.2	Slightly dense
Xixiang Tang Passenger Station	1	8.7	1.52	0.924	0	22.2	Loose
	2	28.7	1.68	0.848	0	23.9	Slightly dense
Entrance and exit sections of Anji Comprehensive Base	1	20.5	1.94	0.634	7.07	24.5	Slightly dense
	2	22.7	1.93	0.685	1.62	25.8	Moderately dense
	3	20.3	2.00	0.564	0.97	23.3	Moderately dense
	4	21.2	1.89	0.680	1.56	23.3	Moderately dense
	5	12.7	1.74	0.710	6.57	26.1	Slightly dense