IDENTIFICATION OF SLIP SURFACE OF DALEM WANGI AREA USING GEOELECTRIC METHOD

• Main Author: Nur Ekasari, Ardhy
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/50385
• Institution: Institut Teknologi Bandung

Bandung is a plateau with a range of mountains around it so it is like a large basin which is usually called the Bandung Basin. Based on geological data, the North Bandung Region is one area that has a high enough landslide potential. The Dalem Wangi area located in Dago Bengkok is an area of North Bandung and is also an area prone to landslides. One component that was instrumental in the landslide event was the slip plane. The slip plane is the boundary between a moving mass and a stationary or often called a stable field (bedrock). Mitigation of landslides can be done by identifying slip fields using the geoelectrical method. The subsurface resistivity cross section obtained from the processing of geoelectric data shows that the slip plane can be identified through resistivity contrast between adjacent rocks. The landslide field is usually characterized by a high resistivity value which is below the layer which has a lower value. In this research, geoelectric data is collected with a total of four trajectories using the Wenner-Schlumberger configuration. Based on the inversion results from the 2-D resistivity cross section, obtained the value of rock resistivity with a range of 3.09 ?m to 46,326 ?m. A layer that has a high resistivity at a depth of about 7.41 m from the earth's surface is interpreted as a slip surface.