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

Table 5

Results of the direct shear test on the rounded gravel layer.

Test site	Test site number	Moisture content (%)	Natural density (g⋅cm^−3)	Permeability coefficient (m/d)	c (kPa)	φ (°)	Compactness
Baicangling Station	1	47.3	2.01	90	6.7	31.0	Moderately dense
Chaoyang Square Station	1	51.8	2.05	85	2.0	31.0	Moderately dense
	2	49.7	2.14	87	6.8	34.2	Dense
	3	50.3	2.16	81	4.5	33.0	Dense
Jinhu Square Station	1	50.2	1.91	71	0.2	28.7	Slightly dense
	2	48.9	2.04	74	0.0	30.0	Moderately dense
Minzu Square Station	1	49.1	2.08	54	0.0	27.0	Moderately dense
	2	51.4	2.15	61	0.0	29.5	Dense
Qingchuan Station	1	51.7	2.13	80	0.0	36.9	Dense