ANALYSIS OF LAND SUBSIDENCE USING GEOELECTRIC METHOD IN CURUGPANJANG VILLAGE, BANTEN
Land subsidence is a geological disaster in the form of a gradual decline or sudden lowering of the Earth's surface due to the movement of soil material below the surface. The impacts of land subsidence include flooding in residential areas and damage to houses and residential infrastructure...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/80830 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Land subsidence is a geological disaster in the form of a gradual decline or sudden
lowering of the Earth's surface due to the movement of soil material below the
surface. The impacts of land subsidence include flooding in residential areas and
damage to houses and residential infrastructure. Therefore, it is important to
implement ground movement disaster mitigation measures. One method that can be
used for subsurface interpretation such as landslides is by using the geoelectric
method. The geoelectric method is carried out by injecting DC (Direct Current)
current into the ground. The resulting potential difference value will be used to
obtain the resistivity value. This research aims to determine the causes of land
subsidence by analyzing subsurface structures using the geoelectric resistivity
method. The configurations to be used are the Wenner and Wenner-Schlumberger
configurations which have good lateral resolution and coverage. Data processing
with 2-D inversion process using Res2Dinv software. The resistivity value in path
1 of the Wenner configuration is 0,303 - 10800 ?m and the Wenner-Schlumberger
configuration is 1,16 × 10?2 – 3515 ?m . Meanwhile, path 2 has a Wenner
configuration of 7 × 10?5
- 1371 ?m and a Wenner-Schlumberger configuration
of 0,305 - 1152 ?m.
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