STUDY ON THE EFFECT OF STRIKE OF MATERIAL LAYER ALMOST PARALLEL TO THE SLOPE FACE ON THE STABILITY OF LOW-WALL SLOPE
Slope analysis is conducted to ensure the slope is safe. In general, slope stability analysis is done in 2 dimensions, but if the conditions in the field show that the slope is not symmetrical from one side to the other, the slope stability analysis in 2 dimensions is considered less representati...
Saved in:
| Main Author: | |
|---|---|
| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/85205 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Slope analysis is conducted to ensure the slope is safe. In general, slope stability
analysis is done in 2 dimensions, but if the conditions in the field show that the slope
is not symmetrical from one side to the other, the slope stability analysis in 2
dimensions is considered less representative.
In this study, several modelling for slope stability analysis using the limit
equilibrium method and finite element method in 3 dimensions (3D) were carried
out related to the low-wall slope owned by PT XYZ with different strike angles of
the slope forming material to the slope face strike of ???? (0°, 5°, 10°, 15°, 20° and
30°). Modelling for the LEM analysis was conducted using slide3, giving results in
the form of a plan view of the size and location of the landslide as well as results in
the form of values of the factor of safety (FK), landslide height, and landslide
volume. While modelling for FEM was carried out using RS3 providing results in
the form of a plan view of deformation on the slope seen from above and three
cross-sections, as well as displacement values measured from 8 predetermined
monitoring points.
Based on the analysis results obtained, there is an influence of the ???? angle on the
value of the low-wall slope safety factor where the FK value will tend to decrease
until the most critical ???? angle and then will increase again. Then, the ???? angle also
affects the deformation value of the low-wall slope where the deformation value of
the slope will be more critical on one side of the slope than the other side of the
slope. A stabilisation method is proposed that can be used for the slope case, which
is to leave the slope material in front of the intersection of the material layer with
the crest of the slope at each level, which is proven to increase the factor of safety.
|
|---|