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All Journal BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil
Masdar Helmi
Jurusan Teknik Sipil; Universitas Lampung; JL. Prof. Sumantri Brojonegoro No. 1, Lampung, Indonesia
Civil Engineering, Building, Construction & Architecture Transportation

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Analisis Perkuatan Jalan dan Lereng Menggunakan Shearkey dan Soil Nailing Pada Program PLAXIS 2D Selvia Merinda; Masdar Helmi; Andius Dasa Putra; Mohammad. Isneini; Vera Agustriana Noorhidana
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 14 No 1 (2026): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (January 2026)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v14i1.11211

Abstract

Indonesia has diverse geological and geographical conditions, with many hilly and sloping areas utilized as roadways. In Lampung Province, there is a national road connecting Liwa City and Padang Tambak that passes through hilly terrain and several landslide-prone areas. This study aims to analyze the landslide potential and design slope and road reinforcement using shear keys, soil nailing, and shotcrete through the PLAXIS 2D program and manual analysis methods in accordance with SNI 8460:2017, considering both static and seismic conditions. The PLAXIS 2D analysis results indicate that the existing road and slope have a landslide potential with a safety factor of 1.474 < 1.5 (minimum standard SF), requiring reinforcement to improve stability and meet the minimum safety standard. Based on the study results, the most suitable reinforcement considering the existing conditions includes the use of shear keys, soil nailing, and shotcrete. The reinforcement modeling using PLAXIS 2D shows a global safety factor of 1.787 > 1.5 for static conditions and 1.217 > 1.1 for seismic conditions. This design has proven effective in enhancing slope stability, both through manual and numerical analysis. This research is expected to serve as a reference for landslide risk mitigation in the study area and other similar regions, thereby reducing risks and improving public safety.
Co-Authors Andius Dasa Putra Mohammad. Isneini Selvia Merinda Vera Agustriana Noorhidana