Evaluation of the Effects of Aging and Different Site Conditions on the Seismic Response of Municipal Solid Waste (A Case of Kahrizak Landfill)

Document Type : Research Article

Authors

1 Shahroud University of Technology

2 Amirkabir University of Technology

3 shahrood university of technology

Abstract

Studying the behavior of landfills under earthquake conditions to maintain safety and prevent failure is of significant environmental importance. The purpose of this study is to investigate the effective parameters in the seismic behavior of landfills with a combination of laboratory, field, and numerical methods. In this regard, Kahrizak landfill center (KLC), located in Tehran, was selected as an example of landfills in developing countries to study different parameters.  At first, a series of field and laboratory experiments, including CSWS tests and cyclic triaxial tests were used to determine dynamic parameters of the municipal solid waste (MSW), including shear wave velocity, damping ratio, and shear modulus in the ages of fresh, 7.5, and 16 years old. Then, using the available results, the one-dimensional equivalent linear analysis was performed by DEEPSOIL software to model the landfill behavior under different seismic accelerations. The effects of waste aging, types of foundations, the height of landfills, and seismic base accelerations on the dynamic response of MSW are presented in terms of peak ground acceleration, displacement, and stress ratio. The results of these studies showed various effects of the parameters on the landfill seismic behavior. Landfill behavior is highly dependent on the components of waste and age changes. Thus, the increase in the waste age and the process of decay can increase the surface acceleration and, ultimately, the resonance phenomenon in 7.5, and 16 years old samples. 

Keywords

Main Subjects


  1. J. Ramaiah, G.V. Ramana, M. Datta, Mechanical characterization of municipal solid waste from two waste dumps at Delhi, India, Waste Management, 68 (2017) 275-291.
  2. Keramati, S. Goodarzi, H. Moradi Moghadam, A. Ramesh, Evaluating the stress-strain behavior of MSW with landfill aging, International Journal of Environmental Science and Technology, (2018) 1-10.
  3. Yuan, Jr.E. Kavazanjian, W. Chen, B. Seo, Compositional effects on the dynamic properties of municipal solid waste, Waste Management, 31 (2011) 2380–2390.
  4. Alidoust, P. Kargar, S. Goodarzi, M. Keramati, H. Moradi Moqaddam, Laboratory-based assessment on similarities between dynamic behavior of MSW and clay, Journal of Material Cycles and Waste Management, 23 (2021) 622–643.
  5. S. Hossain, M.A. Haque, L.R. Hoyos, Dynamic properties of municipal solid waste in bioreactor landfills with degradation, Geotechnical and Geological Engineering, 28 (2010) 391-403.
  6. Keramati, N. Shariatmadari, M. Karimpour-Fard, A. Saeedanezhad, P. Alidoust, Effect of aging on dynamic properties of municipal solid waste: A case study of Kahrizak Landfill, Tehran, Iran, Scientia Iranica, 26 (2019) 1077-1088.
  7. Keramati, H. Moradi Moghaddam, A. Ramesh, Prediction of the Stress-Strain Behavior of MSW Materials Using Hyperbolic Model and Evolutionary Polynomial Regression (EPR), Amirkabir Journal of Civil Engineering, 51(4) (2019) 793-804.
  8. Choudhury, P. Savoikar, Equivalent-linear seismic analyses of MSW landfills using DEEPSOIL. Engineering Geology, 107 (2009) 98-108.
  9. Khaleghi, In-situ test to determine the effect of aging on shear wave velocity of municipal solid waste (Case study: Kahrizak Landfill). Master of Science Thesis [in Persian], Iran University of Science and Technology, (2011)
  10. Keramati, N. Shariatmadari, M. Karimpour-Fard, M.N. Shahrbabak, Dynamic behavior of MSW materials under cyclic triaxial testing: a case of Kahrizak Landfill, Tehran, Iran, Iranian Journal of Science and Technology, Transactions of Civil Engineering, 40 (2016) 75-83.
  11. M.A. Hashash, M.I. Musgrove, J.A. Harmon, D.R. Groholski, C.A. Phillips, D. Park, DEEPSOIL 6.1, user manual. Urbana, IL, Board of Trustees of University of Illinois at Urbana-Champaign, (2016).
  12. M. Rathje, J.D. Bray, One-and two-dimensional seismic analysis of solid-waste landfills, Canadian Geotechnical Journal, 38 (2001) 850-862.
  13. Vucetic, R. Dobry, Effect of Soil Plasticity on Cyclic Response. J. Geotech. Eng, 117 (1991) 89–107.
  14. B. Seed, S.E. Dickenson, I.M. Idriss, Principal Geotechnical aspects of the 1989 Loma Prieta earthquake, Soils and Foundations, 31 (1991) 1-26.
  15. Seo, (2008). Compositional effects on the mechanical properties of municipal solid waste. Ph.D. Dissertation, Arizona State University, USA.
  16. Zekkos, J.D. Bray, E. Kavazanjian, N. Matasovic, E.M. Rathje, M.F. Riemer, K.H. Stokoe, Unit Weight of Municipal Solid Waste, J. Geotech. Geoenvironmental Eng. 132 (2006) 1250–1261.
  17. G. Wright, K.H. Stokoe, J.M. Roesset, SASW measurements at geotechnical sites overlaid by water, In Dynamic Geotechnical Testing II. ASTM International. 2 (1994) 39 –57.
  18. Zekkos, J.D. Bray, M.F. Riemer, Shear modulus and material damping of municipal solid waste based on large-scale cyclic triaxial testing, Can. Geotech. J. 45 (2008) 45–58.
  19. ASTM D3999-91: Standard test methods for the determination of the modulus and damping properties of soils using the cyclic triaxial apparatus. West Conshohocken, PA, USA: ASTM International, (2003).
  20. Towhata, Geotechnical earthquake engineering. University of Tokyo, Japan, (2008).