Analisis Stabilitas Tanah Di Jalan Cirebon – Bandung Km 60+700 dengan Menggunakan Program Plaxis V20

Abstract

Landslides are one of the natural disasters that have caused significant losses, both in material and non-material forms. Cibedeng Hamlet, RT. 24 RW. 06, Padanaan Village, Paseh District, Sumedang Regency, West Java, is a hilly area that has experienced changes in land use. The cause of the landslide on the highway was due to landslides. At the top of the slope there is a connecting road between Bandung and Cirebon which is used by large vehicles. The impact of the landslide in the area resulted in hampered mobilization activities which caused congestion. In this study, as a solution that will handle landslides with existing conditions using the Plaxis V20 program to help analyze deformation and geotechnical stabilization in the variations of landslide handling analyzed, providing detailed display output in the form of calculation results in the Plaxis program. Manual calculations using the bishop method were used to determine the value of the slope safety factor with the slope condition that had already collapsed. The analysis results with a safety factor value (MSF) of 1.083 under normal conditions. The results show that using four variations in reinforcement treatment yielded varying safety factor (MSF) values, with boredpile reinforcement achieving the highest safety factor (MSF) of 1.771 under earthquake conditions. Therefore, for landslide management on the Cirebon-Bandung Road Section KM 60+700, boredpile reinforcement meets the design requirements.