Page 99 - Handbook GEOTEKNIK_Final_Neat

Typical Slope Profile & Geometry Common Mode of Slope Failures

Surface
rupture
2m
6m V Surface
H of rupture

1) Fill Slopes and Embankments
Gradient - 1V:2H
All untreated fill slopes and embankments shall be designed with minimum of 2m berm width and
maximum of 6m berm height.

2) Cut Slope
Gradient - 1V:1.5H
All untreated slopes shall be designed with minimum of 2m berm width and maximum of 6m berm
height.
These include cut slopes in residual soils and in completely decomposed rock.

3) Rock Slope Source area Curved tree
All rock slopes shall be analysed and designed. Main track
Preliminary consideration can be used using 4V:1H. trunks
Depositional
4) Maximum nos of berm area Slope ripples
SHOULD NOT more than 6 nos. of berms.
Fence out of alignment
Note:
However, the actual stability shall be determined with slope stability analysis.
Figure 39: Mode of Slope Failures

82 PUBLIC WORKS DEPARTMENT MALAYSIA GEOTECHNICAL ENGINEERING HANDBOOK 83