Table 13 Geological Hazard Hazard Assessment for Slope Zones.

From: Study on comprehensive landslide risk zoning method in open pit mines under multi factor coupling effects

Zone name

Zone characteristics

A1

The zone is affected by fault structures, with well-developed fractures and significant fracture zones in the rock mass. A small-scale sloughing is present around 80 m east of the broken zone, about 30 m in height

A2

The upper part of the Fourth and Third strata is affected by rainfall and weathering, partially peeling off. The maximum slope angle at the bottom of the single bench is about 60°, with the slope angle at the upper part of the rock bench being around 50°

A3

From the 1088 m plateau to the 1142 m plateau, this zone has multiple benches, each with a height of about 54 m and a slope angle of around 47°

A4

The single bench in this area has a height of approximately 74 m, with a slope angle of 64°

A5

From the 1020 m plateau to the 1115 m plateau, this zone has multiple benches, each about 95 m high, with a slope angle of around 57°

A6

The working face in the loess area has a slope height of about 190 m, with interbedded mudstone and sandstone layers, and the slope is relatively gentle

A7

Interbedded mudstone and sandstone layers with relatively gentle slopes

A8

From the 974 m plateau to the 1120 m plateau, the slope height in this area is about 140 m, with a slope angle of around 32°

A9

From the 978 m plateau to the 1260 m plateau, the slope consists mainly of peeled sandstone and mudstone, with a slope height of about 282 m and a slope angle of around 7°

A10

From the 1260 m plateau to the 1280 m plateau, the slope consists mainly of a mixture of waste materials and geotechnical substances, with a slope height of about 20 m and a slope angle of around 8°

A11

From the 1280 m plateau to the 1310 m plateau, the slope consists mainly of loess waste materials, with a slope height of about 30 m and a slope angle of around 6°

A12、A13、A14、A15、A16

These areas have relatively gentle slopes, with no significant changes in surface morphology, and the geotechnical properties are homogeneous