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Experimental and FDM Study on Geogrid-Soil Interaction by Reformed Direct Shear Test Apparatus | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 5، دوره 7، شماره 4 - شماره پیاپی 16، بهمن 2019، صفحه 72-87 اصل مقاله (1.36 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2018.14449.1262 | ||
| نویسندگان | ||
| Ali Namaei* ؛ Mohammad Ali Arjomand؛ Arash Aminaee | ||
| Faculty of Civil Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran | ||
| تاریخ دریافت: 24 فروردین 1397، تاریخ بازنگری: 22 مرداد 1397، تاریخ پذیرش: 25 مهر 1397 | ||
| چکیده | ||
| This paper presents the effect of geogrid tensile strength by computing the pullout resistance and the geogrid-soil interaction mechanism. In order to inquire this interface, a series of pullout tests have been conducted by a large scale reformed direct shear test apparatus in the both cohesive and granular soils. In numerical, the finite difference software FLAC3D has been carried out on experimental tests and the results are compared with findings from laboratory tests and to complete investigation results. The results reveal that the tensile strength of geogrids has a major role in the interface behavior. The effect of the soil type also is discussed. The acquired results indicate that the geogrids with low tensile strength have higher pullout resistance in the low normal stress on the surface, this effect reversed as the normal applied stress is increased. Numerical analysis only estimates the pullout strength with good agreement in the high normal stresses. Furthermore, it is found that the effective particle size of soil is close to the geogrid thickness by comparing two sands with different grain size. | ||
| کلیدواژه‌ها | ||
| Geogrid؛ Interaction؛ Tensile Strength؛ Pullout Resistance | ||
| مراجع | ||
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[1] Bergado, D.T., Chai, J.C., Abiera, H.O., Alfaro, M.C., Balasubramaniam. (1993). ''Interaction between Cohesive – Frictional Soil and Various Grid Reinforcements''. Geotextiles and Geomembranes, Vol. 12, No. 4, pp. 327 – 349. [2] Korner, R. M. (2005). ''Designing with geosynthetic''. 5th ed. 338. [3] Moraci, N., Recalcati, P. (2006). ''Factors affecting the pullout behaviour of extruded geogrids embedded in a compacted granular soil''. Geotext. Geomembr. 24 (4), 220-242. [4] Arulrajah, A., Rahman, M.A., Piratheepan, J., Bo, M.W., Imteaz, M.A. (2014). ''Evaluation of interface shear strength properties of geogrid-reinforced construction and demolition materials using a modified large-scale direct shear testing apparatus'. J. Mater. Civ. Eng. 26 (5), 974e982. [5] Lopes, M.L., Ladeira, M. (1996). 'Influence of the confinement, soil density and displacement rate on soil geogrid interaction''. Geotext. Geomembr. 14 (10), 543-554. [6] Abdi, M.R., Arjomand, M.A. (2011). ''Pullout tests conducted on clay reinforced with geogrid encapsulated in thin layers of sand''. Geotext. Geomembr. 29 (6), 588e595. [7] Naeini, S.A., Khalaj, M., Izadi, E. (2013). ''Interfacial shear strength of silty sandegeogrid composite''. Proc. ICE Geotech. Eng. 166 (1), 67-75. [8] Liu, C.-N., Yang, K.-H., Nguyen, M.D. (2014). ''Behavior of geogrid reinforced sand and effect of reinforcement anchorage in large-scale plane strain compression''. Geotext. Geomembr. 42 (5), 479-493. [9] Bergado, D.T., Chai, J.-C. (1994). ''Pullout force-displacement relationship of extensible grid reinforcements''. Geotext. Geomembr. 13 (5), 295-316. [10] Ochiai, H., Yasufuku, N., Yamaji, T., Xu, G.-L., Hirai, T. (1996). ''Experimental evaluation of reinforcement in geogrid soil structure''. In: Proceedings of International Symposium on Earth Reinforcement, Kyushu, Japan, pp. 249-254. [11] Moraci, N., Cardile, G. (2012). ''Deformative behaviour of different geogrids embedded in a granular soil under monotonic and cyclic pullout loads''. Geotext. Geomembr. 32, 104-110. [12] Mosallanezhad, M., Taghavi, S.S., Hataf, N., Alfaro, M. (2016). ''Experimental and numerical studies of the performance of the new reinforcement system under pull-out conditions''. Geotext. Geomembr. 44 (1), 70-80. [13] Esfandiari, J., Selamat, M.R. (2012). ''Laboratory investigation on the effect of transverse member on pull out capacity of metal strip reinforcement in sand''. Geotext. Geomembr. 35, 41-49. [14] Bathurst, R.J., Ezzein, F.M. (2015). ''Geogrid and soil displacement observations during pullout using a transparent granular soil''. Geotech. Test. J. 38 (5), 673-685. [15] Mahmoud, G., Mohamed, A. (2013). ''Three dimensional finite element analysis of soil geogrid interaction under pullout loading condition''. GeoMonteral, 66th Canadian Geotechnical Conference , 260, 452-458. [16] Ezzein, F.M., Bathurst, R.J., Kongkitkul, W. (2015). ''Nonlinear loadestrain modeling of polypropylene geogrids during constant rate-of-strain loading''. Polym. Eng. Sci. 55 (7), 1617-1627. [17] Qian, Y., Mishra, D., Tutumluer, E., Kazmee, H.A. (2015). ''Characterization of geogrid reinforced ballast behavior at different levels of degradation through triaxial shear strength test and discrete element modeling''. Geotex. and Geomembr., 43(5), 393-402. [18] Wang, Z., Jacobs, F., Ziegler, M. (2016). ''Experimental and DEM investigation of geogrid-soil interaction under pullout loads''. Geotex. and Geomembr. 44, 230-246. [19] ASTM D6706-01. (2001). ''Standard test method for measuring geosynthetic pullout resistance in soil''. Annual Book of ASTM Standards. ASTM International, West Conshohocken, USA. [20] ASTM D5321, 2017. ''Standard Test Method for Determining the Shear Strength of Soil-Geosynthetic and Geosynthetic-Geosynthetic Interfaces by Direct Shear. Annual Book of ASTM Standards''. ASTM International, West Conshohocken, USA. [21] Palmeira, E.M. (2004). ''Bearing force mobilisation in pull-out tests on geogrids''. Geotext. Geomembr. 22 (6), 481-509. [22] Subaida, E.A., Chandrakaran, S., Sankar, N. (2008). ''Experimental investigations on tensile and pullout behavior of woven coir geotextiles''. Geotex. and Geomembr. 26(2008), 384-392. | ||
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