Stability of MSW Landfill Slopes Reinforced with Geogrids
Source abstract
Abstract
Slope stability is one of the main problems encountered in MSW (municipality solid waste) landfill designs. Slope stability calculations become difficult due to the heterogeneous structure of MSW landfills and leachate, and therefore, slope geometries are formed by choosing low slope angles for safe designs. This causes less waste to be stored on site. This study presents slope stability analyses of MSW landfills. Numerical analyses were performed using finite element and limit equilibrium methods. The stability behavior of landfill slopes was analyzed for both unreinforced and geogrid-reinforced conditions in order to investigate the effects of shear strength parameters, the unit weight of soil waste, and material model parameters. It has been seen that the stability of landfill slopes can be increased significantly using geogrid materials. When the optimum geogrid parameters obtained from the numerical analysis results are used, it has been observed that the safety factor of the slope can be increased by up to approximately two times. Slopes in landfills reinforced with geogrid reinforcements can be formed steeper, allowing more solid waste to be stored. Considering the high initial investment cost of MSW landfills, it has been concluded that storing more solid waste with the use of geogrids will provide significant economic gains. Based on the results, the optimum values of geogrid parameters were determined and suggested for maximum reinforcing effects in MSW landfill slopes.
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Research context
OpenAlex topics: Geotechnical Engineering and Soil Stabilization · Landfill Environmental Impact Studies · Geotechnical Engineering and Underground Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Civil Engineering, Dicle University, 21280 Diyarbakir, Turkey
References (51)
Show source-provided references
1. Kettleman Hills waste landfill slope failure. II: Stability analyses10.1061/(ASCE)0733-9410(1990)116:4(669) ↗
2. Municipal solid waste slope failure I: Waste and foundation soil properties10.1061/(ASCE)1090-0241(2000)126:5(397) ↗
3. Leachate in landfills: The stability issues10.1016/S0266-1144(99)00034-5 ↗
4. Comparison of slope stability in two Brazilian municipal landfills10.1016/j.wasman.2007.07.006 ↗
5. Three-dimensional stability analysis of the Kettleman Hills landfill slope failure based on observed sliding-block mechanism10.1016/j.compgeo.2005.11.002 ↗
6. Municipal solid waste slope failure. II: Stability analyses10.1061/(ASCE)1090-0241(2000)126:5(408) ↗
7. Stability analyses of municipal solid waste landfills with decomposition10.1007/s10706-009-9265-0 ↗
8. Huvaj-Sarihan, N., and Stark, T.D. (2008, January 11–16). Back analyses of landfill slope failures. Proceedings of the 6th International Conference on Case Histories in Geotechnical Engineering and Symposium in Honor of Professor James K. Mitchell., Arlington, VA, USA.
9. Prediction of the performance of a geogrid-reinforced slope founded on solid waste10.3208/sandf.41.6_1 ↗
10. Jiang, H., Zhou, X., and Xiao, Z. (2020). Stability of extended earth berm for high landfill. Appl. Sci., 10.10.3390/app10186281 ↗
11. Field behaviors of a geogrid reinforced MSW slope in a high-food-waste-content MSW landfill: A case study10.1016/j.geotexmem.2020.10.017 ↗
12. Evaluation of interface shear strength of composite liner system and stability analysis for a landfill lining system in Thailand10.1016/j.geotexmem.2006.04.001 ↗
13. Effect of geotextile constraint on geotextile/geomembrane interface shear behavior10.1680/gein.2011.18.3.104 ↗
14. Experimental investigations and constitutive modeling of cyclic interface shearing between HDPE geomembrane and sandy gravel10.1016/j.geotexmem.2018.12.013 ↗
15. Shear strength of landfill liner interface in the case of varying normal stress10.1016/j.geotexmem.2020.05.004 ↗
16. Characterisation of geomembrane and geotextile interface short-term creep behaviour in a dry condition10.1016/j.geotexmem.2021.11.008 ↗
17. Brinkgreeve, R.J.B. (2002). User Manual, 2D Version 8, Delft University of Technology & PLAXIS b.v.
18. Geo-Slope İnternational Ltd. (2007). SLOPE/W Tutorial, Geo-Slope İnternational Ltd.
19. Landva, A., and Knowles, G.D. (1990). Geotechnics of Waste fill. Geotechnics of Waste Fills-Theory and Practice, ASTM. ASTM STP 1070.10.1520/STP1070-EB ↗
20. Geotechnical properties of municipal solid waste10.1520/GTJ10324J ↗
21. Kavazanjian, E. (2001, January 1–5). Mechanical properties of municipal solid waste. Proceedings of the 8th International Waste Management and Landfill Symp, Environmental Sanitary Engineering Centre CISA, Univ. of Padua, Padua, Italy. Sardinia 2001, Volume III.
22. Hossain, M.S. (2002). Mechanics of Compressibility and Strength of Solid Waste in Bioreactor Landfills. [Ph.D. Dissertation, Department of Civil Engineering, North Carolina State University].
23. Sharma, H.D., and Reddy, K.R. (2004). Geoenvironmental Engineering: Site Remediation, Waste Containment, and Emerging Waste Management Technologies, John Wiley & Sons.
24. Zekkos, D.P. (2005). Evaluation of Static and Dynamic Properties of Municipal Solid Waste. [Ph.D. Dissertation, Department of Civil and Environmental Engineering, Univ. of California].
25. Evaluation of the stability of sanitary landfills
26. Sharma, H.D., and Goyal, H.K. (1991, January 10). Performance of a hazardous waste and sanitary landfill subjected to Loma Prieta earthquake. Proceedings of the 2nd ICRAGEESD, St. Louis, MI, USA.
27. Seismic stability procedures for soil-waste landfills10.1061/(ASCE)0733-9410(1995)121:2(139) ↗
28. Fassett, J.B., Leonards, G.A., and Repetto, P.C. Geotechnical properties of municipal solid waste and their use in landfill design. Proceedings of the Waste Tech ’94 Solid Waste Association of North America, Silver Springs, MD, USA.
29. Kavazanjian, E., Matasovic, N., Bonaparte, R., and Schmertmann, G.R. (1995, January 24). Evaluation of MSW properties for seismic analysis. Proceedings of the Specialty Conference on Geotechnical Practice in Waste Disposal, Part 1, New Orleans, LA, USA.
30. Sharma, H.D., Dukes, M.T., and Olsen, D.M. (1990, January 10–13). Field measurements of dynamic moduli and Poisson’s ratios of refuse and underlying soils at a landfill site. Proceedings of the Symposium on Geotechnics of Waste Fills—Theory and Practice, Pittsburg, PL, USA.10.1520/STP25299S ↗
31. Deformation characteristics of MSW materials. Electron
32. Engineering properties of municipal solid waste10.1016/j.geotexmem.2004.11.002 ↗
33. The use of slip circles in stability analysis of slopes10.1680/geot.1955.5.1.7 ↗
34. Application of composite slip surfaces for stability analysis
35. A method of analysis of the stability of embankments assuming parallel inter-slice forces10.1680/geot.1967.17.1.11 ↗
36. The analysis of the stability of general slip surfaces10.1680/geot.1965.15.1.79 ↗
37. Hettiarachchi, H., and Ge, L. (2009, January 15–19). Use of geogrids to enhance stability of slope in bioreactor landfills: A conceptual method. Proceedings of the International Foundation Congress and Equipment Expo, Orlando, FL, USA.10.1061/41023(337)66 ↗
38. Bowles, J.E. (1996). Foundation Analysis and Design, McGraw-Hill. [5th ed.].
39. Slope stability analysis by finite elements10.1680/geot.1999.49.3.387 ↗
40. Hammah, R.E., Curren, J.H., Corklum, B., and Yacoub, T. (2004, January 7–9). Analysis of rock slopes, using the finite element method. Proceedings of the ISRM Regional Symposium Eurock 2004 and the 53rd Geomechnaics Colloquy, Salzbuurg, Australia.
41. Khabbaz, H., Fatahi, B., and Nucifora, C. (2012, January 15–18). Finite element methods against limit equilibrium approaches for slope stability analysis. Proceedings of the Australia New Zealand Conference on Geomechanics, Melbourne, Australia.
42. Some of limit equilibrium method and finite element method based software are used in slope stability analysis
43. Stability of slopes on clays of variable strength by limit equilibrium and finite element analysis methods
44. Rotaru, A., Bejan, F., and Almohamad, D. (2022). Sustainable Slope Stability Analysis: A Critical Study on Methods. Sustainability, 14.10.3390/su14148847 ↗
45. Application of geogrids in waste dump stability: A numerical modeling approach10.1007/s12665-011-1385-1 ↗
46. Some geotechnical aspects of bioreactor landfills10.3311/pp.ci.2011-1.05 ↗
47. Datta, S., and Sivakumar Babu, G.L. (2016, January 14–18). Prediction of the slope stability of municipal solid waste landfills using the reliability analysis. Proceedings of the Geo-Chicago, Chicago, IL, USA.10.1061/9780784480144.066 ↗
48. Centrifuge model test and limit equilibrium analysis of the stability of municipal solid waste slopes10.1007/s10064-018-1308-4 ↗
49. Slope stability and deformation analysis of Bangalore MSW landfills using constitutive model10.1061/(ASCE)GM.1943-5622.0000587 ↗
50. Soil-Water characteristics and creep deformation of unsaturated expansive subgrade soil: Experimental test and simulation10.3389/feart.2021.783273 ↗
51. Kavazanjian, E., Matasovic, N., and Bachus, R.C. (1999, January 4–8). Large-diameter static and cyclic laboratory testing of municipal solid waste. Proceedings of the Sardinia, Cagliari, Italy.