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. 2020 May 14;6(5):e03907. doi: 10.1016/j.heliyon.2020.e03907

Table 2.

A summary of the field survey data for the studied cases.

Parameters	Specifications	Cases
Parameters	Specifications	Slope 1	Slope 2	Slope 3	Slope 4
Topography	Slope height (m)	65	72	32	102
	Morphology	Natural	Trenches	Trenches	Natural
	Slope topology	Rough	Smooth	Smooth	Rough
Discontinuity network (dip direction)	Discontinuity set 1	54/213	42/207	71/152	60/217
	Discontinuity set 2	24/114	49/070	53/228	71/084
	Discontinuity set 3	57/158	53/319	-	-
	Discontinuity set 4	-	57/129	-	-
Algorithm requirements	Slope dip (β)	80^o	77^o	86^o	89^o
	Discontinuity dip (α)	45^o	65^o	78^o	68^o
	Excavation face (m)	66	73.9	18	100
	DDC^∗ (m)	27	1.2	15	5
	DDT^∗∗ (m)	0.2	0.2	0.3	0.7
Geo-material property	UCS (MPa)	25	25	25	22
	Cohesion (kPa)	75	80	80	72
	Friction angle	22^o	25^o	25^o	22^o
Empirical engineering classification	RQD	65	63	70	47
	SMR	IIIa	IIIb	IIb	IVb
	Q-slope	Uncertain	Uncertain	Stable	Unstable

^∗

Distance between the first discontinuity and slope crown.

^∗∗

Distance between the first discontinuity trace in slope face.