Study on Treatment of Loess Landslide Based on Nanosilica and Fly Ash Composite Stabilizer Filling Fissures

Table 4

Testing results of the WT tests.

Test	Material content (%)	s0 (kPa)	σ3–ua (kPa)	Rs	After shear but before wetting Sr (%)	After wetting
						sf (kPa)	Srf (%)
WT1	10	380	50	0.25	44.2	—	96.3
				0.5	46.7	15	95.2
				0.75	44.5	88	75
			100	0.25	48.6	—	96.6
				0.5	47.3	107	74
				0.75	50.3	158	68
			200	0.25	49.6	—	98.1
				0.5	43.1	—	97.3
				0.75	48.3	75	82
			400	0.25	40.9	—	95.8
				0.5	47.7	—	97.5
				0.75	50.8	84	79
WT2	15	392	50	0.25	52.6	—	98.4
				0.5	48.6	—	96.2
				0.75	48.3	12	95.5
			100	0.25	44.3	—	97.3
				0.5	47.6	17	94.3
				0.75	44.9	77	82
			200	0.25	48.8	—	98.1
				0.5	49.7	—	97.9
				0.75	45.8	95	76
			400	0.25	53.2	—	97.3
				0.5	49.4	—	96.7
				0.75	50.5	—	95.9
WT3	20	395	50	0.25	48.5	—	95.4
				0.5	47.9	—	95.9
				0.75	50.3	—	97.5
			100	0.25	45.9	—	96.6
				0.5	43.2	—	98.7
				0.75	44.8	—	97.3
			200	0.25	50.3	—	96.1
				0.5	48.5	—	97.2
				0.75	48.1	—	98.9
			400	0.25	47.9	—	96.4
				0.5	49.1	—	95.8
				0.75	46.7	—	95.9

S₀ is initial matric suction, R_s is stress level, s_f is matric suction when failure, and S_rf is degree of saturation when failure—no failure.