The Role of Water and Lithology on the Deformation and Failure of an Anaclinal Rock Slope in a Hydropower Reservoir

Table 3

Toppling deformation characteristics of rock masses with different depths on the bank slope.

Standard of classification	Disintegration and relaxing deformation zone	Strong toppling deformation zone	Weak toppling deformation zone
Dip angle (°)	0–20	20–40	40–60
Variation of dip angle (°)	50–70	30–50	15–30
Maximum tensile length (cm)	5–20	1–5	<1
Unloading deformation characteristics	Strong unloading, much relaxed	Strong unloading, relaxed	Weak unloading, locally relaxed
Weathering degree	Strong weathered	Strong weathered-weak weathered	Weak weathered