Influence of Deflection Deformations on the Sustainability of the Landfill Cover: Analysis and Recommendations


  • Mehrez Jamei Civil Engineering Department, College of Engineering, Northern Border University, Saudi Arabia
  • Abdelkader Mabrouk Civil Engineering Department, College of Engineering, Northern Border University, Saudi Arabia
  • Yahya Alassaf Civil Engineering Department, College of Engineering, Northern Border University, Saudi Arabia
Volume: 14 | Issue: 3 | Pages: 14387-14394 | June 2024 |


The design of cover landfill requires an optimum thickness of the compacted fine soil layer with small permeability. In general, the objective is to reduce the thickness of the landfill cover. However, for a thin layer, and under natural evaporation, denser crack network growths occur during the desiccation by drying. Cracks change the geometrical properties during the drying and wetting cycles and significantly compromise the role of the cover layer, by inducing an infiltration water flow and gas migration. An important differential flexure deformation occurs. The landfill cover, where stiffness and tensile and shear strengths were reduced is being progressively damaged. Thus, this paper aims 1) to quantify the flexural deformation and 2) to provide a methodology and a guideline for studying the integrity of a cover landfill. So, a mechanical model is proposed and implemented in Code Bright software. The methodology starts from the calibration and the validation of the mechanical model based on 1) four-point flexural beam tests and 2) on existing published results. A physical prototype was employed to demonstrate the flexure deformation, and the crack development. Moreover, short natural fibers were mixed and embedded in the soil to make the soil reinforcement and delay crack propagation. In addition to the experimental investigation, mathematical constitutive equations were proposed, in which the contribution of short fibers in terms of increase of tensile strength was introduced. Finally, a simple case study was considered to demonstrate the role of the fiber-soil composite on flexural deformation and tensile stress distribution across the cover layer. An analysis of the numerical results was conducted to support the use of short fibers as reinforcement, which is an environmentally friendly and sustainable solution.


cover landfill, desiccation cracks, deformationn, beam tests, flexure modeling, fibers, reinforcement


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B. V. S. Viswanadham, S. Rajesh, and S. S. Sengupta, "Studies on the Integrity of Clay-Rich Soil Liners for Cover Systems of Landfills," in GeoCongress 2008: Geosustainability and Geohazard Mitigation, New Orleans, LA, USA, Mar. 2008, pp. 48–55.

A. Y. Benabdallah and R. Boudour, "Smart Collection of Waste Bread in Algeria Using the Internet of Things," Engineering, Technology & Applied Science Research, vol. 12, no. 6, pp. 9483–9486, Dec. 2022.

M. Naghel, A. Farhi, and A. Redjem, "Household Waste Management Challenges: The Case of M’sila, Algeria," Engineering, Technology & Applied Science Research, vol. 12, no. 3, pp. 8675–8682, Jun. 2022.

75, "Saudi Arabia - Waste Management," Jan. 03, 2024.

A. Saravanan, P. S. Kumar, T. C. Nhung, B. Ramesh, S. Srinivasan, and G. Rangasamy, "A review on biological methodologies in municipal solid waste management and landfilling: Resource and energy recovery," Chemosphere, vol. 309, Dec. 2022, Art. no. 136630.

S. N. S. Ismail and L. A. Manaf, "The challenge of future landfill: A case study of Malaysia," Journal of Toxicology and Environmental Health Sciences, vol. 5, no. 3, pp. 2400–2407, Jun. 2013.

K. Kupusamy et al., "Construction Waste Estimation Analysis in Residential Projects of Malaysia," Engineering, Technology & Applied Science Research, vol. 9, no. 5, pp. 4842–4845, Oct. 2019.

J. Blair and S. Mataraarachchi, "A Review of Landfills, Waste and the Nearly Forgotten Nexus with Climate Change," Environments, vol. 8, no. 8, Aug. 2021, Art. no. 73.

B. V. S. Viswanadham, S. Rajesh, P. V. Divya, and J. P. Gourc, "Influence of randomly distributed geofibers on the integrity of clay-based landfill covers: a centrifuge study," Geosynthetics International, vol. 18, no. 5, pp. 255–271, Oct. 2011.

M. Amini, H. S. Isfahani, and A. Azhari, "Evaluating water and gas permeability of fiber-modified landfill clay-base liner," Journal of Environmental Engineering and Science, vol. 17, no. 3, pp. 120–130, Sep. 2022.

S. Rajesh and B. V. S. Viswanadham, "Hydro-mechanical behavior of geogrid reinforced soil barriers of landfill cover systems," Geotextiles and Geomembranes, vol. 29, no. 1, pp. 51–64, Feb. 2011.

H. Trabelsi, M. Jamei, H. Zenzri, and S. Olivella, "Crack patterns in clayey soils: Experiments and modeling," International Journal for Numerical and Analytical Methods in Geomechanics, vol. 11, no. 36, pp. 1410–1433, Jul. 2012.

H. Trabelsi, E. Romero, and M. Jamei, "Tensile strength during drying of remoulded and compacted clay: The role of fabric and water retention," Applied Clay Science, vol. 162, pp. 57–68, Sep. 2018.

W.-Q. Cheng, Z. Yang, M. Hattab, H. Bian, S. Bouchemella, and J.-M. Fleureau, "Free desiccation shrinkage process in clayey soils," European Journal of Environmental and Civil Engineering, vol. 26, no. 13, pp. 6398–6423, Sep. 2022.

N. Touze, "Contribution des geosynthetiques au developpement durable," Revue Francaise de Geotechnique, no. 160, 2019, Art. no. 1.

A. Mittal and A. K. Shrivastava, "Settlement of Landfill Clay Cover Barriers with Geogrid Reinforcement," in Indian Geotechnical Conference, Surat, India, 2021, pp. 261–273.

J. G. Zornberg, "Geosynthetic Reinforcement in Landfill Design: US Perspectives," in International Perspectives on Soil Reinforcement Applications, Austin, TX, USA, Oct. 2005, pp. 1–12.

E. Kravchenko, J. Liu, W. Niu, and S. Zhang, "Performance of clay soil reinforced with fibers subjected to freeze-thaw cycles," Cold Regions Science and Technology, vol. 153, pp. 18–24, Sep. 2018.

S. Olivella, A. Gens, and J. Carrera, "CodeBright User’s Guide," Barcelona, ETSI Caminos, Canales y Puertos, Universitat Politecnica de Catalunya and Instituto de Ciencias de la Tierra, CSIS, 1997.

O. Ple, A. Manicacci, J. P. Gourc, and S. Camp, "Flexural behaviour of a clay layer: experimental and numerical study," Canadian Geotechnical Journal, vol. 49, no. 4, pp. 485–493, Apr. 2012.

S. Camp, J. P. Gourc, and O. Ple, "Landfill clay barrier subjected to cracking: Multi-scale analysis of bending tests," Applied Clay Science, vol. 48, no. 3, pp. 384–392, Apr. 2010.

J.-P. Gourc, O. Ple, P. Villard, and M. Jamei, "Comportement des systemes sols/geosynthetiques en couverture de centres de stockage de dechets," in African Regional Conference, Marrakech, Morocco, Dec. 2003, pp. 1–14.

C.-S. Tang, D.-Y. Wang, Y.-J. Cui, B. Shi, and J. Li, "Tensile Strength of Fiber-Reinforced Soil," Journal of Materials in Civil Engineering, vol. 28, no. 7, Jul. 2016, Art. no. 04016031.

M. Zaryoun and M. Hosseini, "Lightweight fiber-reinforced clay as a sustainable material for disaster resilient architecture of future buildings," Architectural Engineering and Design Management, vol. 15, no. 6, pp. 430–444, Nov. 2019.

X.-Y. Liu, Y. Ye, K. Li, and Y.-Q. Wang, "Stress Path Efforts on Palm Fiber Reinforcement of Clay in Geotechnical Engineering," Water, vol. 15, no. 23, Jan. 2023, Art. no. 4053.

M. Jamei, P. Villard, and H. Guiras, "Shear Failure Criterion Based on Experimental and Modeling Results for Fiber-Reinforced Clay," International Journal of Geomechanics, vol. 13, no. 6, pp. 882–893, Dec. 2013.

M. Jamei, Y. Alassaf, A. Ahmed, and A. Mabrouk, "Fibers reinforcement of the fissured clayey soil by desiccation," Magazine of Civil Engineering, vol. 109, no. 1, 2022, Art. no. 10914.


How to Cite

M. Jamei, A. Mabrouk, and Y. Alassaf, “Influence of Deflection Deformations on the Sustainability of the Landfill Cover: Analysis and Recommendations”, Eng. Technol. Appl. Sci. Res., vol. 14, no. 3, pp. 14387–14394, Jun. 2024.


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