Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal Science and Physics Education Journal (SPEJ)
Rima Ramadhani
Politeknik Negeri Samarinda
Education

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Analisis Stabilitas Lereng dan Dinding Penahan Tanah Kantilever Berbasis Back Analysis Geo5 Jalan Suryanata Samarinda Rima Ramadhani; Muhammad Ridwan; Raudah Ahmad
Science and Physics Education Journal (SPEJ) Vol. 10 No. 1 (2026): SPEJ (Science and Physics Education Journal)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/6ts16q15

Abstract

Abstract: This study aimed to evaluate the safety factors of the existing slope and a proposed cantilever retaining wall by comparing manual calculations using the Fellenius and Coulomb methods with GEO5 analysis. Secondary data included Standard Penetration Test (SPT) results and laboratory soil test data from two boreholes. The analysis comprised slope stability assessment, back analysis to calibrate soil parameters, lateral earth pressure estimation, and retaining wall stability evaluation against overturning, sliding, and bearing capacity failure. Manual calculations produced slope safety factors of 1.53–2.26, whereas back analysis using GEO5 reduced the values to 0.91–1.23, indicating unstable conditions. The proposed cantilever retaining wall satisfied all stability requirements, with overturning safety factors of 10.70 and 7.12, sliding safety factors of 2.87 and 2.26, and bearing capacity safety factors of 3.12–3.30 and 3.21 from manual and GEO5 analyses, respectively. The proposed retaining wall is structurally safe, and GEO5 provides more conservative safety factor estimates than manual calculations.   Keywords: Fellenius, GEO5, Retaining Wall, Slope Stability
Co-Authors Muhammad Ridwan Raudah Ahmad