Analisis Perbandingan Efektivitas Penanganan Longsor dengan Metode DPT Borepile dan Geotextile ditinjau dari Aspek Waktu Pelaksanaan

Abstract

Landslide management on national road infrastructure requires construction methods that can ensure slope stability while accelerating project completion time, especially on sections with high traffic such as the Niam–Lubuk Kambing intersection STA 17+070. The change in method from borepile retaining walls to geotextiles as a result of budget efficiency policies has created a need for analysis of the duration of implementation. This study aims to compare the implementation times of the two methods in order to obtain a more effective alternative to support project acceleration. The research methods include technical data processing, work item compilation, project scheduling, and progress analysis using the S-Curve. The analysis results show that the bored pile method requires 120 calendar days, while the geotextile method can be completed in 90 calendar days. There is a time acceleration of 30 days or 25% faster in the geotextile method. Based on these results, the geotextile method is considered more efficient in terms of duration and contributes significantly to the optimization of project implementation time for landslide mitigation.