ANALYSIS AND 2D INTERPRETATION OF SUBSURFACE USING THE GEOELECTRICAL RESISTIVITY METHOD TO ESTIMATE A POTENTIAL AREA OF WELLBORE DRILLING

• Main Author: Nizar Zulmi, M.
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/71543
• Institution: Institut Teknologi Bandung

Water is a natural resource that has very important role for life. Some of the water is stored in the form of groundwater or soil water. Groundwater or soilwater is water that is below the ground surface. To be able to determine the potential of groundwater in a certain area, it is necessary to carry out a geophysical survey. One of the geophysical survey methods that can be used is the geoelectrical method. In this study, the geoelectrical method was used to determine the distribution of groundwater in Cikadut Village, Cimenyan District, Bandung Regency, West Java. Data collection was carried out directly at the location using the Wenner configuration then the data was processed using the RES2DINV software to obtain a 2D interpretation of the subsurface resistivity along the measurement path at the research location. The smaller the resistivity value, the greater the potential for groundwater presence. The resistivity distribution can be used to predict the subsurface layers. The range of resistivity values obtained is 19.5 ????? to around 3,671 ????? with a depth of up to 39.6 meters. The structure of the subsurface layers is thought to be sandstone, clay, volcanic breccia, slab rock, and basalt rock. The results of this interpretation are used to estimate the area for making a drilled well which will later function as a water source for the Al-Ikhromin Mosque which is close to the measurement location.