APPLICATION OF GROUND PENETRATING RADAR METHOD TO IDENTIFY CAVITY IN PLT – MG AREA IN LABUAN BADAS WEST NUSA TENGGARA

• Main Author: Afrina, Risa
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/53695
• Institution: Institut Teknologi Bandung

Ground Penetrating Radar (GPR) is one of geopyhisical methods which uses electromagnetic waves to predict the position of underground anomaly. Electromagnetic waves that transmitted by the transmitter will detect relative permitivty condition beneath the surface. In November 2018 PLT-Mg Sumbawa, Labuan Badas started the construction of a power plant on a porous soil type. This method is needed to determine porous location to avoid loss by the time the foundation constructed. There are eighteen lines which classified into three bore hole area. Data acquisition is processed by MatGPR software for smoothing all of the data and 3-D modelling. Data interpretation will be done using coefficient of reflection value which forms the stress of the lines in the 3-D model. Interpretation result of GPR will show that there are fifteen porous location which located in different line.