Sand Slope Stability Analysis Using the Bishop Simplified Hyrcan 2.0 Method with CaCO3 Reinforcement
DOI:
https://doi.org/10.37253/jcep.v6i1.9979Keywords:
stabilitas lereng, metode Bishop Simplified, Hyrcan 2.0, perkuatan kimiawi, CaCO3Abstract
Slopes are open land surfaces that form an angle and therefore their stability and safety factors need to be considered. This research aims to analyze the stability of sand slopes using the Bishop Simplified method in Hyrcan 2.0 software with the addition of calcite (CaCO3) as a reinforcement method. Sand slopes have low stability due to low cohesion and lack of interaction between particles, which is exacerbated by the influence of groundwater. The addition of CaCO3 in various concentrations (0%, 10%, and 20%) was applied to improve the shear strength parameters of the sand slope. The simulation model includes six material variations with slope geometric configurations that reflect field conditions. The simulation results showed that the slope with 20% CaCO3 concentration had the highest factor of safety (FOS) of 1.05, compared to 0.73 in the model without reinforcement. Vertically shifting the landslide center point affects the length of the slide plane and the FOS value, where increasing the CaCO3 concentration contributes significantly to improving the slope stability. The relationship between the vertical location of the landslide center and FOS was analyzed using linear regression, which showed a negative relationship between the two. This study concludes that the addition of CaCO3 effectively improves the stability of sand slopes, with FOS approaching safe values although the FOS value in the best model is still categorized as unsafe.
References
B. M. Das dan K. Sobhan, Principles of geotechnical engineering. Boston: PWS Engineering, 1985.
A. S. Muntohar, “PENGARUH REMBESAN DAN KEMIRINGAN LERENG TERHADAP KERUNTUHAN LERENG,” J. Tek. Sipil - UCY, vol. 1, no. 2, hlm. 19–28, 2006.
M. Yusar, dan Indrastuti, "Studi Pengaruh Pemanfaatan Fly Ash terhadap Stabilitas Tanah pada Proyek Meisterstadt Batam," Journal of Civil Engineering and Planning, vol. 3, no. 2, hlm. 161-168.
B. T. Julianto, F. Ramadhan, M. Fauzan, dan H. Putra, “Pengaruh Penambahan CaCO3 terhadap Parameter Kuat Geser Pasir Pantai,” J. Tek. Sipil Dan Lingkung., vol. 8, no. 03, hlm. 233–239, Des 2023, doi: 10.29244/jsil.8.03.233-239.
Z. N. Khairunnisa, “Soybean Crude Urease-Calcite Precipitation (SCU-CP) for Problematic Soils Improvement,” Annu. Nation Conf. Geotech. Eng., 2023.
N. Amri, D. Dharmawansyah, Hermansyah, "Perbandingan Metode Bishop dan Janbu dalam Analisis Stabilitas Lereng pada Orpit Jembatan Labu Sawo Sumbawa," Journal of Civil Engineering and Planning, vol. 2, no. 1, hlm. 20-33.
A. W. Bishop, “The use of the Slip Circle in the Stability Analysis of Slopes,” Géotechnique, vol. 5, no. 1, hlm. 7–17, Mar 1955, doi: 10.1680/geot.1955.5.1.7.
R. G. Mikola, “HYRCAN: A Comprehensive Limit Equilibrium Software Package for 2D Slope Stability Analysis,” 2 Februari 2023, Preprints. doi: 10.22541/au.167533016.65709246/v1.
S. Khodijah, U. S. Monica, J. Ersyari, "Analisis Kestabilan Lereng Mengginakan Metode Kesetimbangan Batas dalam Kondisi Statis dan Dinamis pada PIT X, Tanjung Enim, Sumatra Selatan," Padjajaran Geoscience Journal, vol. 6, no. 4, hlm. 1030-1037.
R. K. Ali, Najib, dan A. Nasrudin, "Analisis Peningkatan Faktor Keamanan Lereng pada Areal Bekas Tambang Pasir dan Batu di Desa Ngablak, Kecamatan Cluwak, Kabupaten Pati," Promine Journal., vol. 5, no. 1, hlm. 10-19, 2017.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Baskoro Tri Julianto, Sitti Filzha Fitrya Ginoga

This work is licensed under a Creative Commons Attribution 4.0 International License.