Analisis Stabilitas Tempat Pembuangan Akhir (TPA) Sampah Akibat Pengaruh Perubahan Sifat Mekanis Material Sampah
Abstract
The stability of landfill is a crucial aspect of waste management. Numerous factors influence the stability of landfill, one of which is the alteration of the mechanical properties of the waste material. This research aims to analyze landfill stability by considering the effects of changes in the mechanical properties of waste material. A construction stage analysis was conducted to model the process of altering the mechanical properties of waste material. The analysis was divided into 13 stages corresponding to the number of landfill steps. The initial five stages were modeled as waste with an age of < 5 years, stages 6-10 were modeled as waste with an age of 5-10 years, and the last three stages were modeled as waste with an age of > 10 years. Stability analysis using the finite element method was conducted using the concept of shear strength reduction. The analysis results indicated changes in the landfill's safety factor throughout its operational period. Stages 1-5 experienced changes in the safety factor, although these changes were not significant. Stages 6-10 witnessed a considerable decrease in the safety factor before experiencing an increase in stage 11, followed by a continuous decline until the end of stage 13. Despite changes in the safety factor during the operational process, the overall safety factor values obtained still met the minimum safety factor criteria required.
Downloads
References
Azizi, F. (2000) Applied Analysis in Geotechnics. London: E & FN Spon.
Badan Standarisasi Nasional (2017) SNI 8460:2017 Persyaratan Perancangan Geoteknik, Persyaratan perancangan geoteknik. Jakarta: Badan Standarisasi Nasional.
Bowles, J.E. (1984) Physical and Geotechnical Properties of Soils. 2nd edn. Auckland: McGraw-Hill.
Chen, W.F. and Saleeb, A.F. (1994) Constitutive Equations for Engineering Materials. Amsterdam: Elsevier.
Duncan, J.M., Wright, S.G. and Brandon, T.L. (2014) Soil Strength and Slope Stability. 2nd edn. New Jersey: John Wiley & Sons.
Emadi-Tafti, M., Ataie-Ashtiani, B. and Hosseini, S.M. (2021) ‘Integrated impacts of vegetation and soil type on slope stability: A case study of Kheyrud Forest, Iran’, Ecological Modelling, 446(March), pp. 1–14. Available at: https://doi.org/10.1016/j.ecolmodel.2021.109498.
Farshidfar, N. and Nayeri, A. (2015) ‘Slope Stability Analysis by Shear Strength Reduction Method’, Journal of Civil Engineering and Urbanism, 5(1), pp. 35–37.
Ismail, S. et al. (2019) ‘Slope stability of landfill with waste degradation’, International Journal of Innovative Technology and Exploring Engineering, 9(1), pp. 393–398. Available at: https://doi.org/10.35940/ijitee.A4148.119119.
Jahanfar, A. et al. (2017) ‘Erratum for “Municipal Solid Waste Slope Stability Modeling: A Probabilistic Approach” by Ali Jahanfar, Bahram Gharabaghi, Edward A. McBean, and Brajesh K. Dubey’, Journal of Geotechnical and Geoenvironmental Engineering, 143(9), p. 8217001. Available at: https://doi.org/10.1061/(asce)gt.1943-5606.0001763.
Khenane, A. (2013) Introduction to Finite Element Analysis Using Matlab and Abaqus. Boca Raton: CRC Press.
Krase, V. (2007) Stability of Municipal Solid Waste Landfills. Technische Universität Braunschweig.
Potts, D.M. and Zdravkovic, L. (2001) Finite Element Analysis in Geotechnical Engineering. London: Thomas Telford.
Putera, M.A. (2018) Analisis 3 Dimensi Stabilitas Lereng Timbunan Sampah Padat Perkotaan Pada Tpst Piyungan Yogyakarta. Universitas Gadjah Mada.
Ramadhani, S. et al. (2024) ‘Analisis Stabilitas Lereng Tambang Nikel Kabupaten Morowali’, REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development, 5(1), pp. 65–70. Available at: https://doi.org/10.22487/renstra.v5i1.654.
Reddy, K.R. et al. (2015) ‘Effects of Degradation on Geotechnical Properties of Municipal Solid Waste from Orchard Hills Landfill, USA’, International Journal of Geosynthetics and Ground Engineering, 1(3), pp. 1–14. Available at: https://doi.org/10.1007/s40891-015-0026-2.
Rockscience (2024) Shear Strength Reduction Overview. Available at: https://www.rocscience.com/help/rs2/documentation/rs2-model/ssr-stability-analysis (Accessed: 21 April 2024).
Shen, J. and Karakus, M. (2014) ‘Three-dimensional numerical analysis for rock slope stability using shear strength reduction method’, Canadian Geotechnical Journal, 51(2), pp. 164–172. Available at: https://doi.org/10.1139/cgj-2013-0191.
Copyright (c) 2024 Anafi Minmahddun, Muh. Handy Dwi Adityawan, Ainul Fatayaatis Salaamah
This work is licensed under a Creative Commons Attribution 4.0 International License.