Experiment of geosynthetic tensile strength in soil- geosynthetic interaction by pull-out test


A. Beyranvand, S.H. Lajevardi, M.M.H Hazaveh

Soil reinforcement has a long history to improve its shear and tensile strength. The new way of soil reinforcement was developed by Henry Vidal in France (1960). In recent years, the use of geosynthetics has been increased to reinforce the soil structures. Due to the increasing use of geosynthetics, it is necessary to examine the stability of the reinforced soil structures by geosynthetic and also their analysis for internal and external stability. The use of reinforced soil by geogrid is preferred in economic and operational terms than the other methods for the earth structures stability. In this research, the soil-geogrid interaction parameters were studied in pull-out mode and a large-scale laboratory pull-out apparatus was used to study the geogrid tensile strength effect on the soil-geogrid interaction and five types of geogrids with different tensile strength were used. The results of the experiments showed that if the vertical pressure on the specimen is zero, all the geogrids are extruded out in the pull-out mode and do not rupture. Vertical pressure has a great effect on the increase of the t pull-out strength and when the tensile strength becomes higher, the greater vertical force is required on the surface of the sample in the pull-out box, so that its pull-out strength becomes active entirely. By increasing the tensile strength of the geogrid, the pull-out force of the geogrid becomes greater and the displacement of the geogrid sample is reduced inside the pull-out box. The results showed that by compressing the soil sample and placing it up and down the geogrid plate, the pull-out force is increased.

Keywords: Soil structures; pull-out; tensile strength; interaction; soil; geogrid

Farrag, K., Acar, Y. B., & Juran, I. (1993). Pull-out resistance of geogrid reinforcements. Geotextiles and Geomembranes, 12(2), 133-159.
Sugimoto, M., Alagiyawanna, A. M. N., & Kadoguchi, K. (2001). Influence of rigid and flexible face on geogrid pullout tests. Geotextiles and Geomembranes, 19(5), 257-277.
Alagiyawanna, A. M. N., Sugimoto, M., Sato, S., & Toyota, H. (2001). Influence of longitudinal and transverse members on geogrid pullout behavior during deformation. Geotextiles and geomembranes, 19(8), 483-507.
Racana, N., Grédiac, M., & Gourves, R. (2003). Pull-out response of corrugated geotextile strips. Geotextiles and Geomembranes, 21(5), 265-288.
Palmeira, E. M. (2004). Bearing force mobilisation in pull-out tests on geogrids. Geotextiles and geomembranes, 22(6), 481-509.
Subaida, E. A., Chandrakaran, S., & Sankar, N. (2008). Experimental investigations on tensile and pullout behaviour of woven coir geotextiles. Geotextiles and Geomembranes, 26(5), 384-392.
Abdi, M. R., & Arjomand, M. A. (2011). Pullout tests conducted on clay reinforced with geogrid encapsulated in thin layers of sand. Geotextiles and Geomembranes, 29(6), 588-595.
Shi, D., & Wang, F. (2013). Pull-out test studies on the interface characteristics between geogrids and soils. EJGE, 18, 5405-5417.
Lajevardi, S. H., Dias, D., & Racinais, J. (2013). Analysis of soil-welded steel mesh reinforcement interface interaction by pull-out tests. Geotextiles and geomembranes, 40, 48-57.
Suksiripattanapong, C., Horpibulsuk, S., Chinkulkijniwat, A., & Chai, J. C. (2013). Pullout resistance of bearing reinforcement embedded in coarse-grained soils. Geotextiles and Geomembranes, 36, 44-54.
Alam. S. R., Karim, M. R. (2014). Pull-out behavior of steel grid reinforcement embedded in silty sand, Computers and Geotechnics, 216-226.
Abdelouhab, A., Dias, D., & Freitag, N. (2011). Numerical analysis of the behaviour of mechanically stabilized earth walls reinforced with different types of strips. Geotextiles and Geomembranes, 29(2), 116-129.
Isla, F., Ruano, G., & Luccioni, B. (2015). Analysis of steel fibers pull-out. Experimental study. Construction and Building Materials, 100, 183-193.
Abdi, M. R., Zandieh, A. R. (2015). Experimental and numerical analysis of scale pull out test conducted on clays reinforced with geogrids encapsulated wiyh coarse material, Geotextile and Geomembranes, 42, 494-504.
Huang, J., Le, V., Bin-Shafique, S., & Papagiannakis, A. T. (2015). Experimental and numerical study of geosynthetic reinforced soil over a channel. Geotextiles and Geomembranes, 43(5), 382-392.
Lajevardi, S. H., Briancon, L., & Dias, D. (2014). Experimental studies of the geosynthetic anchorage-Effect of geometric parameters and efficiency of anchorages. Geotextiles and Geomembranes, 42(5), 505-514.
Lajevardi, S. H., Dias, D., Briancon, L. (2015) Experimental studies of geosynthetic wrap around anchorage. Geotextile and Geomembranes.


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