Pseudodynamic Stability Analysis of Landfill Veneer Cover Systems with Clogged Drainage Layer
Publication: International Journal of Geomechanics
Volume 24, Issue 2
Abstract
The accumulated water within the drainage layer of a final cover system of municipal solid waste (MSW) landfills is the foremost reason for the failure of final covers. This study adopts a pseudodynamic (PD) method to assess the seismic stability of landfill cover systems against direct sliding failure (DSF) and uplifted floating failure (UFF). The novelty of this study lies in consideration of the simultaneous action of hydrostatic, hydrodynamic, and seismic forces on the cover soil layer. The factors of safety (FS) against DSF (FSds) and UFF (FSuf) failures are evaluated by incorporating the effects of shear and primary (P) wave velocities, the phase difference between the seismic waves, soil amplification, time duration, and frequency of the earthquake. The influence of phase change on FSds and FSuf is examined, and the results are compared with those obtained by the pseudostatic (PS) method. The results show that the PD method yields a 29.11% increase in FSds and a 23.29% reduction in FSuf values compared with the PS method. The effects of horizontal seismic acceleration coefficient, slope angle, stability number, cover soil layer thickness, and height of landfill on FSds and FSuf are observed for different conditions of immersion ratio (Ir). Consideration of the soil amplification factor reduces the values of FSds and FSuf by 12.48% and 18.46%, respectively. The cover soil thickness (h) should be chosen between 0.047H and 0.067H, where the height of the landfill is H, to maintain safety against DSF and UFF modes for Ir = 0.3. Further, design charts are presented to compute the optimum thickness of the cover soil under earthquake loading conditions by targeting FSds and FSuf ≥ 1.15.
Practical Applications
Pseudodynamic (PD) stability analysis of veneer cover systems with accumulated water in the drainage layers is useful to model the behavior of landfill covers when subjected to various external loading conditions, which include earthquakes, heavy rain, and other environmental factors. The results of the analysis could be used to optimize the design of landfill covers to ensure their stability over time. The analysis could help engineers determine the appropriate thickness of the clogged drainage layer and other design parameters that ensure the long-term stability of the landfill cover. It could help assess the risks associated with earthquake loading or heavy rain and determine the probability of failure of the landfill cover system. These results could be used to plan and implement risk mitigation measures to reduce the potential for damage or environmental harm. In addition, it could be used to monitor the performance of landfill covers against direct sliding failure (DSF) and uplifted floating failure (UFF). This study proposed design charts that could facilitate practicing engineers to achieve safe, cost-effective, and reliable design of final covers of municipal solid waste (MSW) landfills. The findings of this study could be beneficial when standardizing the international design codes for the seismic stability of veneer cover systems.
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Data Availability Statement
All data, models, and codes generated or used during this study appear in the published paper.
Acknowledgments
This research was funded by the Government of India, Ministry of Education (12-2/2019-U1), which is gratefully acknowledged.
References
Ahmad, S. M., and D. Choudhury. 2008. “Pseudo-dynamic approach of seismic design for waterfront reinforced soil-wall.” Geotext. Geomembr. 26 (4): 291–301. https://doi.org/10.1016/j.geotexmem.2007.12.004.
Ahmad, S. M., and D. Choudhury. 2010. “Seismic rotational stability of waterfront retaining wall using pseudo-dynamic method.” Int. J. Geomech. 10 (1): 45–52. https://doi.org/10.1061/(ASCE)1532-3641(2010)10:1(45).
Ambraseys, N. N., and K. A. Simpson. 1996. “Prediction of vertical response spectra in Europe.” Earthquake Eng. Struct. Dyn. 25: 401–412.https://doi.org/<401::AID-EQE551 > 3.0.CO;2-B.
Annapareddy, V. S. R., A. Pain, and S. Sarkar. 2017. “Seismic translational failure analysis of MSW landfills using modified pseudo-dynamic approach.” Int. J. Geomech. 17 (10): 04017086. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000990.
ASCE. 2000. Minimum design loads for buildings and other structures, 7–98. New York: ASCE.
Augello, A. J., J. D. Bray, R. B. Seed, N. Matasovic, and E. Kavazanjian Jr.1995. “Solid waste landfill performance during the 1994 Northridge Earthquake.” In Vol. 54 of Proc., Earthquake Design and Performance of Solid Waste Landfills, Geotechnical Special Publication, edited by M. K. Yegian and W. D. Liam Finn, 17–50. Reston, VA: ASCE.
Basha, B. M., and G. L. S. Babu. 2009. “Computation of sliding displacements of bridge abutments by pseudo-dynamic method.” Soil Dyn. Earthquake Eng. 29 (1): 103–120. https://doi.org/10.1016/j.soildyn.2008.01.006.
Basha, B. M., and G. L. S. Babu. 2010. “Seismic rotational displacements of gravity walls by pseudo-dynamic method with curved rupture surface.” Int. J. Geomech. 10 (3): 93–105. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000037.
Basha, B. M., S. Mahapatra, and B. Manna. 2015. “Allowable design strength of geosynthetic reinforcement for veneer stability of MSW landfills: A reliability based approach.” In Proc., Int., Foundations Congress and Equipment Expo 2015, Geotechnical Special Publication 256, edited by M. Iskander, M. T. Suleiman, J. B. Anderson, and D. F. Laefer, 1806–1815. Reston, VA: ASCE.
Bellezza, I. 2014. “A new pseudo-dynamic approach for seismic active soil thrust.” Geotech. Geol. Eng. 32 (2): 561–576. https://doi.org/10.1007/s10706-014-9734-y.
Boyce, B. W. 1994. “The sufficiency of sinusoidal motions in seismic ground motion studies.” M.S. thesis, Dept. of Civil Engineering, Color- ado State Univ.
Chanda, N. 2015. “PD analysis of slope.” Int. J. Adv. Res. Sci. Eng. 24 (1): 729–736.
Chen, Y., Q. Xue, X. He, S. Zhang, P. Wang, and C. Song. 2019. “Stability analysis on veneer cover system for landfill considering the effect of internal seeper.” Eng. Geol. 252: 99–109. https://doi.org/10.1016/j.enggeo.2019.02.024.
Choudhury, D., and S. M. Ahmad. 2008. “Stability of waterfront retaining wall subjected to pseudodynamic earthquake forces.” J. Waterw. Port Coastal Ocean Eng. 134 (4): 252–260. https://doi.org/10.1061/(ASCE)0733-950X(2008)134:4(252).
Choudhury, D., A. D. Katdare, and A. Pain. 2014. “New method to compute seismic active earth pressure on retaining wall considering seismic waves.” Geotech. Geol. Eng. 32 (2): 391–402. https://doi.org/10.1007/s10706-013-9721-8.
Choudhury, D., and S. Nimbalkar. 2005. “Seismic passive resistance by pseudo-dynamic method.” Géotechnique 55 (9): 699–702. https://doi.org/10.1680/geot.2005.55.9.699.
Choudhury, D., and S. S. Nimbalkar. 2008. “Seismic rotational displacement of gravity walls by pseudo-dynamic method.” Int. J. Geomech. 8 (3): 169–175. https://doi.org/10.1061/(ASCE)1532-3641(2008)8:3(169).
Choudhury, D., S. S. Nimbalkar, and J. N. Mandal. 2007. “External stability of reinforced soil walls under seismic conditions.” Geosynth. Int. 14 (4): 211–218. https://doi.org/10.1680/gein.2007.14.4.211.
Choudhury, D., B. G. Rajesh, and P. Savoikar. 2017. “Recent advances in seismic design of MSW landfill considering stability.” Geoenviron. Pract. Sustainability 31–37. Singapore: Springer.
Choudhury, D., and P. Savoikar. 2009. “Simplified method to characterize municipal solid waste properties under seismic conditions.” Waste Manage. (Oxford) 29 (2): 924–933. https://doi.org/10.1016/j.wasman.2008.05.008.
Choudhury, D., and P. Savoikar. 2011. “Seismic yield accelerations of MSW landfills by pseudo-dynamic approach.” Nat. Hazard. 56 (1): 275–297. https://doi.org/10.1007/s11069-010-9568-8.
Corps of Engineers. 1960. Engineering and design, stability of earth dams and rockfill dams. Rep. No. EM 1110-2-1902. Washington, DC: U.S. Army.
Feng, S.-J., and L.-Y. Gao. 2012. “Seismic stability analyses for landfill cover systems under different seepage build-up conditions.” Environ. Earth Sci. 66 (1): 381–391. https://doi.org/10.1007/s12665-012-1619-x.
Feng, S.-J., J.-Y. Chang, and H.-X. Chen. 2018. “Seismic analysis of landfill considering the effect of GM-GCL interface within liner.” Soil Dyn. Earthquake Eng. 107: 152–163. https://doi.org/10.1016/j.soildyn.2018.01.025.
Ghosh, P. 2007. “Seismic passive earth pressure behind non-vertical retaining wall using pseudo-dynamic analysis.” Geotech. Geol. Eng. 25 (6): 693–703. https://doi.org/10.1007/s10706-007-9141-8.
Guo, M., X. Ge, and S. Wang. 2011. “Slope stability analysis under seismic load by vector sum analysis method.” J. Rock Mech. Geotech. Eng. 3 (3): 282–288. https://doi.org/10.3724/SP.J.1235.2011.00282.
Guyer, J. P. 2010. Continuing education and development. New York: Inc. 9 Greyridge Farm Court Stony Point.
Huvaj-Sarihan, N., and T. D. Stark. 2008. “Back-analyses of landfill slope failures.” In Proc., 6th Int. Conf. on Case Histories in Geotechnical Engineering. Rolla, MO: Missouri University of Science and Technology.
Jibson, R. W. 2011. “Methods for assessing the stability of slopes during earthquakes—A retrospective.” Eng. Geol. 122 (1-2): 43–50. https://doi.org/10.1016/j.enggeo.2010.09.017.
Khoshand, A., A. Fathi, M. Zoghi, and H. Kamalan. 2018. “Seismic stability analyses of reinforced tapered landfill cover systems considering seepage forces.” Waste Manage. Res. 36 (4): 361–372. https://doi.org/10.1177/0734242X18757628.
Khoshand, A., and M. Mirzaei. 2022. “A comprehensive approach for evaluating stability of landfill cover.” Arabian J. Geosci. 15 (15): 1359. https://doi.org/10.1007/s12517-022-10611-7.
Koerner, R. M., and T.-Y. Soong. 2005. “Analysis and design of veneer cover soils.” Geosynth. Int. 12 (1): 28–49. https://doi.org/10.1680/gein.2005.12.1.28.
Ling, H. I., and D. Leshchinsky. 1997. “Seismic stability and permanent displacement of landfill cover systems.” J. Geotech. Geoenviron. Eng. 123 (2): 113–122. https://doi.org/10.1061/(ASCE)1090-0241(1997)123:2(113).
Luersen, M. A., and R. Le Riche. 2004. “Globalized Nelder–Mead method for engineering optimization.” Comput. Struct. 82: 2251–2260. https://doi.org/10.1016/j.compstruc.2004.03.072.
Merry, S. M., R. J. Dunn, and R. B. Luper. 2011. “Evaluation of final cover systems and the importance of a geocomposite layer on the predicted performance.” In Geo-frontiers: Advances in geotechnical engineering, edited by J. Han, and D. A. Alzamora, 2233–2244. Reston, VA: ASCE.
Merry, S. M., E. Kavazanjian, and W. U. Fritz. 2005. “Reconnaissance of the July 10, 2000, Payatas landfill failure.” J. Perform. Constr. Facil 19 (2): 100–107. https://doi.org/10.1061/(ASCE)0887-3828(2005)19:2(100).
Metasovic, N., and E. Kavazanjian. 2006. “Seismic response of a composite landfill cover.” J. Geotech. Geoenviron. Eng. 132: 448–455. https://doi.org/10.1061/(ASCE)1090-0241(2006)132:4(448).
Nimbalkar, S. S., D. Choudhury, and J. N. Mandal. 2006. “Seismic stability of reinforced-soil wall by pseudo-dynamic method.” Geosynth. Int. 13 (3): 111–119. https://doi.org/10.1680/gein.2006.13.3.111.
Nozu, A., K. Ichii, and T. Sugano. 2004. “Seismic design of port structures.” J. Jpn. Assoc. Earthquake Eng. 4 (3): 195–208.
Pain, A., D. Choudhury, and S. K. Bhattacharyya. 2015. “Seismic stability of retaining wall-soil sliding interaction using modified pseudo-dynamic method.” Géotechnique Lett. 5 (1): 56–61. https://doi.org/10.1680/geolett.14.00116.
Pain, A., D. Choudhury, and S. K. Bhattacharyya. 2016. “Seismic rotational displacement of retaining walls: A pseudo-dynamic approach.” Innovative Infrastruct. Sol. 1 (1): 22. https://doi.org/10.1007/s41062-016-0023-x.
Pain, A., D. Choudhury, and S. K. Bhattacharyya. 2017. “Seismic rotational stability of gravity retaining walls by modified pseudo-dynamic method.” Soil Dyn. Earthquake Eng. 94: 244–253. https://doi.org/10.1016/j.soildyn.2017.01.016.
Pan, Q. J., X. R. Qu, and X. Wang. 2019. “Probabilistic seismic stability of three-dimensional slopes by pseudo-dynamic approach.” J. Cent. South Univ. 26: 1687–1695.
Presti, D. L., D. Marchetti, and T. Fontana. 2009. “Pseudo-static vs. pseudo-dynamic slope stability analysis in seismic areas of the northern Apennines (Italy).” Rivista Italiana Di Geotecnica 4: 13–29.
Psarropoulos, P. N., Y. Tsompanakis, and Y. Karabatsos. 2007. “Effects of local site conditions on the seismic response of municipal solid waste landfills.” Soil Dyn. Earthquake Eng. 27 (6): 553–563. https://doi.org/10.1016/j.soildyn.2006.10.004.
Qin, C., and S. C. Chian. 2019. “Impact of earthquake characteristics on seismic slope stability using modified pseudo-dynamic method.” Int. J. Geomech. 19 (9): 04019106. https://doi.org/10.1061/(ASCE)GM.1943-5622.0001489.
Qin, C.-B., and S. C. Chian. 2018. “Kinematic analysis of seismic slope stability with a discretisation technique and pseudo-dynamic approach: A new perspective.” Géotechnique 68 (6): 492–503. https://doi.org/10.1680/jgeot.16.P.200.
Rajesh, B. G., and D. Choudhury. 2017. “Stability of seawalls using modified pseudo-dynamic method under earthquake conditions.” Appl. Ocean Res. 65: 154–165. https://doi.org/10.1016/j.apor.2017.04.004.
Rajesh, B. G., and D. Choudhury. 2018. “Seismic stability of seawalls under earthquake and tsunami forces using a modified pseudodynamic method.” Nat. Hazard. Rev. 19 (3): 04018005. https://doi.org/10.1061/(ASCE)NH.1527-6996.0000289.
Rajesh, B. G., and D. Choudhury. 2019. “Computation of sliding displacements of seawalls under earthquake conditions.” Nat. Hazard. 96 (1): 97–119. https://doi.org/10.1007/s11069-018-3531-5.
Richardson, G. N., E. Kavazanjian, and N. Matasovic. 1995. RCRA subtitle D (258): Seismic design guidance for municipal solid waste landfill facilities. Washington, DC: Risk Reduction Engineering Laboratory, Office of Research and Development, U.S. Environmental Protection Agency.
Richardson, G. N., and K. L. Pavlik. 2004. Lessons learned from failure: Landfill covers. Acton, MA: Geocomp Corporation.
Rimoldi, P., P. Pezzano, and A. Gebely. 2022. “Application of Eurocode 7 for the analysis and design of veneer cover soils in static and seismic load conditions.” IOP Conf. Ser.: Mater. Sci. Eng. 1260 (1): 012047.
Ruan, X., and H. Lin. 2015. “Relationship between shear wave wavelength and pseudo-dynamic seismic safety factor in expanded landfill.” Arabian J. Sci. Eng. 40: 2271–2288. https://doi.org/10.1007/s13369-015-1721-y.
Ruan, X.-b., S.-l. Sun, and W.-l. Liu. 2013. “Effect of the amplification factor on seismic stability of expanded municipal solid waste landfills using the pseudo-dynamic method.” J. Zhejiang Univ.-Sci. A 14 (10): 731–738. https://doi.org/10.1631/jzus.A1300041.
Sarma, S. K., and M. Score. 2009. “The effect of vertical accelerations on seismic slope stability.” In Proc., Int. Conf. on Performance-Based Design in Earthquake Geotechnical Engineering, 889–896. London: Taylor & Francis Group.
Sasaki, T., T. Iwashita, and Y. Yamaguchi. 2007. “Calculation method of hydrodynamic pressure in seismic response analysis of gates.” In Proc., Tirthy-Ninth Joint Meeting of UNJR. New Delhi, India: Publication Bureau.
Savoikar, P., and D. Choudhury. 2010. “Effect of cohesion and fill amplification on seismic stability of municipal solid waste landfills using limit equilibrium method.” Waste Manage. Res. 28 (12): 1096–1113. https://doi.org/10.1177/0734242X09348531.
Savoikar, P., and D. Choudhury. 2012. “Translational seismic failure analysis of MSW landfills using pseudodynamic approach.” Int. J. Geomech. 12 (2): 136–146. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000127.
Soujanya, D., and B. M. Basha. 2023. “Effect of hydrostatic and hydrodynamic pressures on the stability of landfill veneer covers with an internal seeper.” J. Hazard. Toxic Radioact. Waste 27 (3): 04023013. https://doi.org/10.1061/JHTRBP.HZENG-1194.
Stark, T. D. 2016. Amended slope stability report: March 12, 2013 Chrin Brothers, Inc. landfill slope failure. Rep. Prepared for Chrin Brothers. Easton, PA: Chrin Hauling.
Steedman, R. S., and X. Zeng. 1990. “The influence of phase on the calculation of pseudo-static earth pressure on a retaining wall.” Géotechnique 40 (1): 103–112. https://doi.org/10.1680/geot.1990.40.1.103.
The Department of the Navy. 1971. “Soil Mechanics, Foundations, and Earth Structures.” NAVFAC DM-7.01. Delhi, India: The Dept. of the Navy.
Westergaard, H. M. 1933. “Water pressures on dams during earthquakes.” Trans. Am. Soc. Civ. Eng. 98: 418–433. https://doi.org/10.1061/TACEAT.0004496.
Zhang, B., G. Fowmes, and D. R. V. Jones. 2012. “Landfill capping stability: Tapered solution with seepage.” Proc. Inst. Civ. Eng. Waste Resour. Manag. 165 (3): 141–149. https://doi.org/10.1680/wama.2012.165.3.141.
Zhang, Z.-L., and X.-L. Yang. 2021. “Seismic stability analysis of slopes with cracks in unsaturated soils using pseudo-dynamic approach.” Transp. Geotech. 29: 100583. https://doi.org/10.1016/j.trgeo.2021.100583.
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International Journal of Geomechanics
Volume 24 • Issue 2 • February 2024
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© 2023 American Society of Civil Engineers.
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Received: Nov 11, 2022
Accepted: Aug 3, 2023
Published online: Nov 27, 2023
Published in print: Feb 1, 2024
Discussion open until: Apr 27, 2024
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