Slope Stability and Slope Formation in the Flysch Zone of the Vienna Forest (Austria)

Table 3

Soil mechanical characteristics and shear strength values of the mantle rocks and loam beds of landslide areas in the Vienna Forest Flysch zone, based on laboratory analyses, as well as in situ measurements.

Soil type	Short symbol after DIN 18196	Consistence, compactness after DIN 18121, 18122	Specific weight (kN/m^3)	Friction angle (°)	Cohesion (kN/m^2)	Shear strength (kN/m^2)
low plastic silt of loess deposits, Ld 3 moderate compact	UL	supple	20,0	27,5	0	50–85
		Solid	21,0		5
moderate plastic clays and marls of periglacial cover beds, Ld 5 compact	TM	Supple	19,0	22,5	0	85–190
		Solid	20,5		10
sand-silt aggregate of decomposed (calcareous) sandstones, earth-moist	SU	moderate compact	20,0	32,5	—	11–15
		Compact	22,0	35,0	—	20–45
moderate plastic marls of Flysch bedrock interbedding, Ld 5 compact	TM	Supple	19,0	22,5	0	70–110
		Solid	20,5		10