Identifikasi Kestabilan Tanggul Waduk Desa Kemuja Menggunakan Metode Geolistrik Resistivitas Konfigurasi Wenner

Abstrak

The dam of  Kemuja Village, constructed in 2015, is located in Kemuja Village, West Mendo District, Bangka Regency. The reservoir is surrounded by embankments designed to prevent flooding in the surrounding rice fields. An initial survey indicated that the embankments have an average height of approximately 2.6 meters from the ground surface, with a water level of around 1 meter above the surface. This study aims to assess the stability of the reservoir embankments through 2D modeling using the Wenner configuration resistivity geoelectric method, with an electrode spacing of 8 meters. The results indicate that the embankments exhibit overall structural stability across most sections. However, areas of potential instability were identified in specific locations, including Track 1 at depths of 0–1 m with a measurement range of 10–14 m, Track 2 at depths of 0–1 m within 36–40 m, Track 3 at depths of 0.5–2 m within 6–8 m, 0–1.5 m within 12–16 m, and 0–2 m within 28–30 m, as well as Track 4 at depths of 0–1 m within 8–10 m and 0–2 m within 44–48 m. These findings provide valuable insights into the structural integrity of the embankments and can inform future maintenance and reinforcement efforts.