ANALYSIS OF LAND SUBSIDENCE USING GEOELECTRIC METHOD IN CURUGPANJANG VILLAGE, BANTEN

• Main Author: Mufidhatul Mughni, Isnaini
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/80830
• Institution: Institut Teknologi Bandung

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.