Scholarly record
IMPACT OF THE SHEAR STRENGTH OF A SOIL-GEOGRID INTERFACE TO THE STABILITY AND DEFORMATION OF AN EMBANKMENT
Abstract
The paper deals with numerical analysis of the stability of an embankment reinforced using a geogrid. The analysis is mainly focused on the impact of the Rinter parameter, which represents the ratio of the soil-geogrid interface shear strength to the shear strength of the soil, on the deformations, and the global stability of the embankment. The properties of the soil-geogrid interface were measured using a modified large size direct shear test apparatus. The biaxial geogrid made of polypropylene with a tensile strength of 30 kN.m-1 was used as the reinforcement. The material tested was sandy gravel well graded. The tests showed that the soil-geogrid interface shear strength is equal to about 86 % of the shear strength of the original soil, which corresponds to the value of the Rinter parameter at the value of 0.86. The numerical analysis was done using Plaxis geotechnical software. Two basic models of the embankment were taken into account in the study, i.e., the embankment with slopes and embankment supported by reinforced retaining walls made of concrete blocks. The analysis was made in a form of a parametric study. The different values of the Rinter parameter within the range of 0.7 - 1.0 were taken into account. The measured values of the Rinter parameter were included in the study. The results of the analysis showed that the modelling of the interface between geogrid and soils could have a significant impact on horizontal deformations, bulging of the embankment, as well as the settlement of the embankment.
Publication Impact Profile
- Citations
- CrossRef - Citation Indexes: 1
- Scopus - Citation Indexes: 0
- Captures
- Mendeley - Readers: 5
Publication details
References10
Blackwood, T. W., Vulova, C. V., Geogrid Reinforced Embankment Constructed Over Peat Soil in Clark Country, Airfield and Highway Pavements Specialty Conference 2006, Atlanta, Georgia, United States, pp. 317-328, 2006;
Meyer, R., Shao, Y., Geogrid-Reinforced and Pile-Supported Road Way Embankment, Geo-Frontiers Congress 2005, Austin, Texas, United States, pp. 13, 2005;
Arulrajah, A., Abdullah, A., Bo, M. W., Bouazza, A., Ground Improvement Techniques for Railway Embankments, Proceedings of the Institution of Civil Engineers: Geotechnical Engineering, vol. 162/issue 1, pp. 3-14, 2009;
Dolinajova, K., Snahnican, J., Geogrid and Double Twist Steel Mesh Reinforced Soil Walls Subjected to High Loads in a Seismic Area, Proceedings of the 12th Slovak Geotechnical Conference, 55 Years of Geotechnical Engineering in Slovakia, Bratislava, Slovakia, pp. 79-87, 2015;
Geng, M., Li, P., Li, J., Numerical Analysis of a Geogrid-Reinforced High Embankment, Fifth International Conference on Transportation Engineering, Dailan, China, pp. 1074-1083, 2015;
Majedi, P., Ghalehjough, B. K., Akbulut, S., ?elik, S., Effect of Reinforcement on Stability and Settlement of Embankment: A Finite Element Analysis of Different Kinds of Reinforcing and Construction Conditions, European Journal of Advances in Engineering and Technology, vol. 4/ issue 10, pp. 759-764, 2017;
Palmeira, E. M., Antunes, L. G. S., Large scale tests on geosynthetic reinforced unpaved roads subjected to surface maintenance, Geotextiles and Geomembranes, vol. 28/issue 6, pp. 547-558, 2010;
Lee, K. M., Manjunath, V. R., "Soil-geotextile interface friction by direct shear tests, Canadian Geotechnical Journal, vol. 37/issue 1, pp. 238-252, 2000;
Stacho, J., Sulovska, M., Slavik, I., Determining the shear strength properties of a soil-geogrid interface using a large-scale direct shear test apparatus, Periodica Polytechnica Civil Engineering, vol. 64/issue 4, pp. 989-998, 2020;
Plaxis Software: Plaxis 2D Connect Edition V20 – Material Models Manual, website: https://www.plaxis.com/support/manuals/plaxis-2d-manuals/ Downloaded: February, 02, 2020.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.