Effect of Length and Distance between the Geogrid Layers on the Performance of MSE Wall Using Finite Elements Method

Document Type : Research Paper


1 assistant professor/ sharif university of technology

2 M.Sc. student in structural engineering/ Sharif University of Technology


    This paper investigates the details of two-dimensional finite elements modeling of geogrid mechanically stabilized earth wall in plain strain conditions. In this research, Mohr-Coulomb model was used for backfill soil, and geogrid layers were modeled as an isoperimetric linear elastic material. Measured data from an instrumented wall in Tucson, AZ, USA, were used to verify the model. Horizontal strains in geogrid layers and horizontal and vertical strains in individual elevations of backfill soil were obtained from the software. Results were in good agreement with the reference ones. Then, the finite elements model was used to investigate the effects of length and location of geogrid layers on wall deformation and loads in reinforcement layers. Based on the results, an economic design can be successfully performed by changing the length and location of geogrid and this is only possible by finite elements analysis. Moreover, it was achieved that lower geogrid layers had the highest effect on displacement of wall and designers should use more layers at the bottom of the wall. This research showed that finite elements method is an appropriate approach for modeling of MSE walls, predicting of their behavior and resolving defects of the measured data from installation of sensors


Berg, R. R., Bonaparte, R., Anderson, R. P. and Chouery, V. E. 1986. “Design, Construction and Performance of Two Geogrid Reinforced Soil Retaining Walls”. Proceedings of the Third International Conference on Geotextiles, PP. 401-406.
Bolton, M. D. 1986. “The strength and dilatancy of sands”. Géotechnique, 36(1): 65-78.
Damians, I. P., Bathurst, R. J., Josa, A. and Lloret, A. 2014. “Numerical analysis of an instrumented steel-reinforced soil wall”. Int. J. Geomech., 15(1): 04014037.
Das, B. M. 2015. “Principles of Foundation Engineering”. Cengage Learning, Stamford, CT, USA.
El-Hoseiny, K.E. 1999. “Analysis of field Tensar retained wall with DSC model and FEM”. PhD Dissertation, Dept. of Civil Eng. and Eng. Mech., University of Arizona, Tucson, Arizona, USA.
Fannin, R. J. and Hermann, S. 1990. “Performance data for a sloped reinforced soil wall”. Can. Geotech. J., 27(5): 676-686.
Federal Highway Administration (FHWA). 1989. “Tensar geogrid-reinforced soil wall”. Experimental Project No. 1, Ground Modification Systems, FHWA-EP-90-001-005, Washington, D. C.   
Fishman, K. L. and Desai, C. S. 1991. “Response of a geogrid earth reinforced retaining wall with full height precast concrete facing”. Proceedings of  Geosynthetics Conference, Atlanta, Georgia, USA. 2: 691-700.
Gray, D. H. and Ohashi, H. 1983. “Mechanics of fiber reinforcement in sand”. J. Geotech. Eng., 109(3): 335-353.
Hussein, M. G. and Meguid, M. A. 2013. “Three-dimensional finite element analysis of soil-geogrid interaction under pull-out loading condition”. Proceedings of GeoMontreal, 66th Canadian Geotechnical Conference, Canadian Geotechnical Society, Montreal, Quebec, Canada, PP. 452-458.
Kokutse, N., Fourcaud, T., Kokou, K., Neglo, K. and Lac, P. 2006. “3D numerical modelling and analysis of the influence of forest structure on hill slopes stability”. In: Marui Hea (Ed.), Interpraevent 2006: Disaster Mitigation of Debris Flows, Slope Failures and Landslides, Niigata, Japan, PP. 561-567.
 Liu, H. L., Ng, C. W. and Fei, K. 2007. “Performance of a geogrid-reinforced and pile-supported highway embankment over soft clay: Case study”. J. Geotech. Geoenviron. Eng., 133(12): 1483-1493.
Ouria, A., Toufigh, V., Desai, C., Toufigh, V. and Saadatmanesh, H. 2016. “Finite element analysis of a CFRP reinforced retaining wall”. Geomech. Eng., 10(6): 757-774.
Pepper, D. W. and Heinrich, J. C. 2005. “The Finite Element Method: Basic Concepts and Applications”. CRC Press.
Rowe, R. K. and Ho, S. K. 1992. “A review of the behavior of reinforced soil walls”. International Symposium on Soil Reinforcement, Kyushu, November, PP. 47-76.
Toufigh, V. 2012. “Experimental and analytical studies of geo-composite applications in soil reinforcement”. PhD Dissertation, Dept. of Civil Eng. and Eng. Mechanics, University of Arizona, Tucson, Arizona, USA.
Vermeer, P. A. and De Borst, R. 1984. “Non-associated plasticity for soils, concrete and rock”. HERON, 29(3): 163-195.
Vidal, H. 1960. “The development and future of reinforced earth”. Keynote address, Symposium 36 on Earth Reinforcement, ASCE Annual Convention, Pittsburgh, PA.
Wu, J. T. 1992. “Predicting performance of the Denver walls: General report”. Proceedings of the International Symposium on Soft Geosynthetic-Reinforced Soil Retaining Walls, Balkema AA.
Yoo, C. and Jung, H. Y. 2006. “Case history of geosynthetic reinforced segmental retaining wall failure”. J. Geotech. Geoenviron. Eng., 132(12): 1538-1548.
Yu, Y., Bathurst, R. J. and Allen, T. M. 2016. “Numerical modeling of the SR-18 geogrid reinforced modular block retaining walls”. J. Geotech. Geoenviron. Eng., 142(5): 04016003.
Zienkiewicz, O. C., Humpheson, C. and Lewis, R. W. 1977. “Discussion: Associated and non-associated visco-plasticity and plasticity in soil mechanics”. Géotechnique, 27(1): 101-102.