ANALYSIS OF THE SUBSURFACE STRUCTURE OF THE LANDSLIDE POTENTIAL AREA BASED ON THE ELECTRICAL AND MECHANIC PROPERTIES OF THE SOIL
Landslides are one of the natural disasters that often occur around the world. The damage caused was in the form of damage to infrastructure to cause casualties. West Java Province is in first place with the largest landslide incident in Indonesia in 2021, one of which is in Jayagiri village, Lem...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/71165 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Landslides are one of the natural disasters that often occur around the world. The
damage caused was in the form of damage to infrastructure to cause casualties.
West Java Province is in first place with the largest landslide incident in Indonesia
in 2021, one of which is in Jayagiri village, Lembang District, West Bandung
Regency. Jayagiri is an area with slope contours of 20 ? 35
0
. Steep surface
contours have a greater potential for landslides. Identification of the surface
structure of the slope is carried out against two parameters, namely the type
resistance and the strength of the soil. In this study, the method used was a
geoelectric method to determine the distribution of subsurface resistivity and
analyze soil samples. The results obtained found the presence of a slip field on 4
passes. The slip field on the JG-1 with a depth of 3.18 m, the JG-2 with a depth of
6.62 m, the JG-4 with a depth of 7.6 m and the JG-5 with a depth of 6.05 m. The
test results of soil samples, obtained soil in a pivoted state with a high moisture
content content. Slope stability analysis obtained the security factor on JG-4 is
1,165 in critical state and JG-5 is 2,278 in stable state.
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