Effects of the first reinforcement depth on different types of geosynthetics

Document Type : Article

Authors

1 Department of Civil Engineering, Hacettepe University, Ankara, Turkey

2 Department of Civil Engineering, Bogazici University, Istanbul, Turkey

3 Department of Civil Engineering, Ataturk University, Erzurum, Turkey

Abstract

In this study, the performance of the first reinforcement layer depth for sand subbase of a road or construction was investigated with plate load laboratory tests. Unreinforced and reinforced experiments for different reinforcement types were made by changing the first reinforcement layer depth ratio. One type of geotextile and two different geogrid specimens were used in the research. Load-settlement curves and Bearing Ratios were studied by measuring the results for different settlement ratios. Finally, laboratory measurements of unreinforced and reinforced soil using geotextile reinforcement were compared with Finite Element Model (FEM) analyses modeled under similar conditions. The results demonstrated the effects of different types of reinforcements for different first reinforcement layer locations. The number of reinforcement layers was another parameter which affected the bearing ratio along with the first reinforcement layer depths. It was also observed that the Bearing Ratio (BR) and load-settlement behavior changed significantly with the first reinforcement depth and settlements. Effects on failure modes for unreinforced and reinforced sand soils were compared for each test.

Keywords

Main Subjects

References

Refrences:
 1.Al-Qadi, I.L., Brandon, T.L., and Bhutta, S.A. Geosynthetic stabilized exible pavements", Proceedings of the Conference Geosynthetics, Long Beach, CA, USA, pp. 647-661 (1997).
2. Cancelli, A. and Montanelli, F. In-ground test for geosynthetic reinforced exible paved sand soils", Proceedings of the Conference Geosynthetics, Boston, MA, USA, pp. 863-878 (1999).
3. Perkins, S.W. Evaluation of geosynthetic reinforced exible pavement systems using two pavements test facilities", Federal Highway Administration Report FHWA/MT-02-008/20040, Montana Department of Transportation, Helena, MT, USA, p. 120 (2002).
4. Hufenus, R., Rueegger, R., Banjac, R., Mayor, O., Springman, S.M., and Bronnimann, R. Full-scale _eld tests on geosynthetic reinforced sand soils on soft subgrade", Geotextiles and Geomembranes, 24(1), pp. 21-37 (2006).
5. Abu-Farsakh, M.Y. and Chen, Q. Evaluation of geogrid base reinforcement in exible pavement using cyclic plate load testing", International Journal of Pavement Engineering, 12(3), pp. 275-288 (2011).
6. Abu-Farsakh, M.Y., Akond, I., and Chen, Q. Evaluating the performance of geosynthetic-reinforced sand soils using plate load tests", International Journal of Pavement Engineering, 17(10), pp. 901-912 (2016).
7. Badakhshan, E. and Noorzad, A. E_ect of footing shape and load eccentricity on behavior of geosynthetic reinforced sand bed", Geotextiles and Geomembranes, 4(5), pp. 58-67 (2017).
8. Mo_at, R. Jadue, C., Beltran, J.F., and Herrera, R. Experimental evaluation of geosynthetics as reinforcement for shotcrete", Geotextiles and Geomembranes, pp. 1-8 (2017).
9. Kargar, M., Mir Mohammad Hosseini, S.M. E_ect of reinforcement geometry on the performance of a reduced-scale strip footing model supported on geocellreinforced sand", Scientia Iranica A, 24(1), pp. 96-109 (2017).
10. Cicek, E. Analysis of strip plates on geosynthetic reinforced sand", Ph.D. Dissertation, Institute of Science in Ataturk University, Erzurum, Turkey (2011).
11. Pasquini, E., Bocci, M., Ferrotti, G., and Canestrari, F. Laboratory characterization and _eld validation of geogrid-reinforced asphalt pavements", Road Materials and Pavement Design, 14(1), pp. 17-35 (2013).
12. Nair, A.M. and Latha, G.M. Repeated load tests on geosynthetic reinforced sand soil sections", Geomechanics and Geoengineering: An International Journal, 11(2), pp. 95-103 (2016).
13. Tang, X., Palomino, A.M., and Sto_els, S.M. Permanent deformation behavior of reinforced exible pavements built on soft soil subgrade", Road Materials and Pavement Design, 17(2), pp. 311-327 (2016).
14. Tuna, S.C. and Altun, S. Mechanical behaviour of sand-geotextile interface", Scientia Iranica A., 19(4), pp. 1044-1051 (2012).
15. Sobhan, K. and Tandon, V. Mitigating reection cracking in asphalt overlay using geosynthetic reinforcements", Road Materials and Pavement Design, 9(3), pp. 367-387 (2008).
16. Fallah, S. and Khodaii, A. Developing a fatigue fracture model for asphalt overlay reinforced with geogrid", Materials and Structures, 49, pp. 1705-1720 (2016).
17. Canestrari, F., Grilli, A., Santagata, F.A., and Virgili, A. Interlayer shear e_ect of geosynthetic reinforcements", Proceedings of the 10th International Conference on Asphalt Pavements, Quebec City, pp. 811-820 (2006).
18. Komatsu, T., Kikuta, H., Tuji, Y., and Muramatsu, E. Durability assessment of geogrid-reinforced asphalt concrete", Geotextiles and Geomembranes, 16(5), pp. 257-271 (1998).
19. Webster, S.L. Geogrid reinforced base courses for exible pavements for light aircraft: test section construction, behavior under tra_c, laboratory tests, and design criteria", Technical Report GL-93-6, USAE Waterways Experiment Station, Vicksburg, MS, USA, p. 86 (1993).
20. Al-Qadi, I.L., Dessouky, S., Kwon, J., and Tutumluer, E. Geogrid in exible pavements: validated mechanism", Transportation Research Record: Journal of the Transportation Research Board, 2045, National Research Council, pp. 102-109 (2008).
21. Hass, R., Walls, J., and Carroll, R.G. Geogrid reinforcement of granular bases in exible pavements", Transportation Research Record: Journal of the Transportation Research Board, 1188, pp. 19-27 (1988).
22. Guido, V.A., Chang D.K., and Sweeney M.A. Comparison of geogrid and geotextile reinforced earth slabs", Canadian Geotechnical Journal, 23(4), pp. 440- 435 (1986).
23. Chen, Q. An experimental study on characteristics and behavior of reinforced soil foundation", PhD Dissertation, Louisiana State University, US (2007). E. Cicek et al./Scientia Iranica, Transactions A: Civil Engineering 26 (2019) 167{177 177
24. Mandal, J.N. and Manjunath, V.R. Bearing capacity of strip plate resting on reinforced sand subgrades", Construction and Building Materials, 9(1), pp. 35-38 (1995).
25. Dash, S.K., Krishnaswamy, N.R., and Rajagopal, K. Bearing capacity of strip plates supported on geocellreinforced sand", Geotextiles and Geomembranes, 19, pp. 235-256 (2001).
26. Alamshahi, S. and Hataf, N. Bearing capacity of strip plates on sand slopes reinforced with geogrid and gridanchor", Geotextiles and Geomembranes, 27, pp. 217- 226 (2009).
27. Chakraborty, M. and Kumar, J. Bearing capacity of circular foundations reinforced with geogrid sheets", Soils and Foundations, 54(4), pp. 820-832 (2016).
28. Dawson, A.R. and Moghaddas Tafreshi, S.N. Comparison of bearing capacity of a strip plate on sand with geocell and with planar forms of geotextile reinforcement", Geotextiles and Geomembranes, 28, pp. 72-84 (2010).
29. El Sawwaf, M. and Nazir, A.K. Behavior of repeatedly loaded rectangular plates resting on reinforced sand", Alexandria Engineering Journal, 49(4), pp. 349-356 (2010).
30. Shin, E.C., Das, B.M., Lee, E.S., and Atalar, C. Bearing capacity of strip foundation on geogrid-reinforced sand", Geotechnical and Geological Engineering, 20(2), pp. 169-180 (2002).
31. Cicek, E., Guler, E., and Yetimoglu, T. Comparison of measured and theoretical pressure distribution below strip footings on sand soil", International Journal of Geomechanics, 14(5), p. 4 (2014).
32. Harikumar, M., Sankar, N., and Chandrakaran, S. Behaviour of model footing resting on sand bed reinforced with multidirectional reinforcing elements", Geotextiles and Geomembranes, 44, pp. 568-578 (2016).
Scientia Iranica
Volume 26, Issue 1
Transactions on Civil Engineering (A)
January and February 2019
Pages 167-177

Files

Share

How to cite

Statistics