Countermeasures analysis of landslide in the cikeusal village of Tasikmalaya regency

Abstract

Abstract The construction of telecommunication towers aims to improve customer service. So that advances in the field of communication and information technology can be felt by residents who are far away in remote parts of the country. The construction of this tower must be planned as well as possible, especially for areas prone to landslides because towers are usually placed in higher areas. The landslide incident at the location of the telecommunication tower in Cikeusal Village, Tasikmalaya Regency can be used as an evaluation for other areas prone to landslides. The landslide can endanger the settlements under the tower. Field investigations are carried out as a basis for making plans to overcome landslides. The analysis was performed using Plaxis 2D software. The results of the strengthening analysis after the erosion prevention were carried out (with several stage), the factor of safety was 1.805 at section B and 3,228 at section C. The recommendations are given for landslide prevention are replacing the old retaining wall with the new one gradually, adding a column in the middle of the retaining wall, adding bored piles under the retaining wall, making drain pipe on the retaining wall to accommodate water flow from the ground surface, replacing the old stairs for access roads that were affected by landslides with new stairs and made with 2 applications so that the slope of the stairs is not too steep, as well as making a foundation for the stairs. It is hoped that the landslide occurrence and the results of the analysis of slope stability in Cikeusal Village, Tasikmalaya Regency can be used as evaluation material in the construction of telecommunication towers for landslide-prone areas.