Stability Analysis of Soil Embankment Slope Reinforced with Polypropylene Fiber under Freeze-Thaw Cycles

Table 6

Analysis of variance (ANOVA) results for mechanical index.

Assessment index	Range	I	II	III	IV
		F-T cycles	Fiber length	Fiber content	Empty column
Cohesion (kPa)	K1	64.326	56.101	53.192	56.747
	K2	56.600	59.538	57.845	57.216
	K3	51.262	56.549	61.151	58.225
	R	13.064	3.437	7.959	1.478
Internal friction angle (°)	K1	34.503	30.967	32.993	28.633
	K2	29.923	31.110	28.783	31.240
	K3	27.680	30.030	30.330	32.233
	R	6.823	1.080	4.210	3.600