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Study of Nail Group Efficiency on Sandy Soil Using Large Scale Pull-out Box | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 5، دوره 10، شماره 1 - شماره پیاپی 25، اردیبهشت 2022، صفحه 69-87 اصل مقاله (1.27 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2021.22026.1463 | ||
| نویسندگان | ||
| Sajad Tavakoli1؛ Mohammad Hosein Aminfar2 | ||
| 1Assistant Professor in Geotechnical Engineering, Ilam Azad University, Ilam, Iran | ||
| 2Professor of Geotechnical Engineering, Civil Engineering Faculty, University of Tabriz, Tabriz, Iran | ||
| تاریخ دریافت: 15 آذر 1399، تاریخ بازنگری: 05 اسفند 1399، تاریخ پذیرش: 05 تیر 1400 | ||
| چکیده | ||
| The present study aims at investigating the pull-out resistance efficiency of single and double nails. In sandy soils, where the distance between nails is less than the minimum required distance, the pull-out resistance is reduced. Besides, when the minimum required distance is met, the nail pull-out capacity is not under the effect of the neighboring nail. The parameters affecting the efficiency of the nail group are investigated in this study; including, a type of nail, nail intervals and overburden type of pressure. One of the most important parameters – in order to determine the efficiency of the group – is the nail surface roughness coefficient, which is dependent on factors such as the number of the ribs in each unit length of nail and, also, the depth of the ribs to the size of soil particle. The nail surface roughness coefficient is used to determine the apparent friction coefficient on the nail surface. In all tests, the pull-out force-displacement curve had distinct peak values, accompanied by a reduction in the pull-out force value. The results indicated that the minimum distance required for the full involvement of the pull-out resistance of the nails was strongly subservient to the roughness coefficient of the nail surface. | ||
| کلیدواژه‌ها | ||
| Soil nailing؛ Group efficiency؛ Apparent friction coefficient؛ Double nails؛ Pull-out resistant | ||
| مراجع | ||
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[1] Cartier, G., and Gigan, J.P. (1983). “Experiments and observations on soil nailing structures.” In Improvement of Ground: Proceedings of the 8th European Conference on Soil Mechanics and Foundation Engineering, Helsinki, Finland, pp. 473-476.
[2] Chu, L.M., and Yin, J.H. (2005). “Comparison of interface shear strength of soil nails measured by both direct shear box tests and pull-out tests.” ASCE Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol.131, pp. 1097-1107, DOI: 10.1061/ (ASCE) 1090-0241(2005)131:9(1097).
[3] Elias, V., and Juran, I. (1991). “Soil nailing for stabilization of highway slopes and excavations.” Federal Highway Administration Report Ref FHWA-RD-89-198, Washington DC, USA.
[4] Farokhzad, F., Shabani, M.J., and Hasanpou, A. (2020). “Investigating Stabilized Excavations Using Soil Nailing Method in Urban Context.” Journal of Rehabilitation in Civil Engineering 8-2 (2020) 126-138 DOI: 10.22075/JRCE.2019.10841.1175.
[5] FHWA-NHI-14-007. (2015). “GEOTECHNICAL ENGINEERING CIRCULAR” NO. 7 SOIL NAIL WALLS - REFERENCE MANUAL. National Highway Institute U.S. Department of Transportation Federal Highway Administration, Washington, DC 20590.
[6] Franzen, G. (1998). “Soil Nailing - A Laboratory and Field Study of Pull-out Capacity.” Ph.D. Thesis, Chalmers University of Technology, Goteborg, Sweden.
[7] Guilloux, A., and Schlosser, F. (1982). “Soil nailing: practical applications in recent development in ground improvement techniques.” Proceedings of the International Symp. Asian Institute of Technology, Bangkok, Thailand, pp. 389-397.
[8] Hajialilue-Bonab, M., and Razavi, S.K. (2015). “A study of soil-nailed wall behaviour at limit states.” Ground Improvement, 169 (1), pp. 64-76, DOI: 10.1680/grim.14.00021.
[9] Hong, C.Y., Liu, Y.F., Zhang, M.X., and Borana, L. (2017). “Influence of Critical Parameters on the Peak Pull-out Resistance of Soil Nails under Different Testing Conditions.” International Journal of Geosynthetics and Ground Engineering, 3:19, pp. 3-17, DOI: 10.1007/s40891-017-0095-5.
[10] Hong, C.Y. (2011). “Study on the Pull-out Resistance of Cement Grouted Soil Nails.” Ph.D. Thesis, the Hong Kong Polytechnic University, Hong Kong.
[11] Hong, C.Y., Zhang, Y.F., Guo, J.W., and Li, G.Y. (2015). “Experimental Study on the Influence of Drill hole Roughness on the Pullout Resistance of Model Soil Nails.” International Journal of Geomechanics, DOI: 10.1061/ (ASCE) GM.1943-5622.0000491
[12] Hong, C.Y., Yin, J.H., and Pei, H.F. (2013). “Comparative study on pullout behavior of pressure grouted soil nails from field and laboratory tests.” J Central South University; 20:2285–92, DOI: 10.1007/s11771-013-1735-0.
[13] Hsu, S.T., and Liao, H.J. (1998) “Uplift behavior of cylindrical anchors in sand.” Canadian Geotechnical Journal, 35: 70–80, DOI: 10.1139/cgj-35-1-70.
[14] Jagdish, P.S., and Jyant, K. (2013). “Horizontal Pullout Resistance of a Group of Two Vertical Anchors in Sand.” KSCE Journal of Civil Engineering. 17(7):1614-1620, DOI: 10.1007/s12205-013-0372-3.
[15] Jewell, R.A., and Pedley, M. (1990). “Analysis for Soil Reinforcement with Bending Stiffness.” Journal of Geotechnical Engineering, 118(10).
[16] Jewell, R.A., and Pedley, M. (1990). “Soil Nailing Design.” Journal of Ground Engineering, 23(2): 30-36.
[17] Junaideen, S.M., Tham, L.G., Law, K.T., Lee, C.F. and Yue, Z.Q. (2004). “Laboratory study of soil-nail interaction in loose, completely decomposed granite.” Canadian Geotechnical Journal. 41: 274-286, DOI: org/10.1139/t03-094.
[18] Lou, S.Q., Tan, S.A. and Yang, K.Y. (2000). “Pull-out resistance mechanism of a soil nail reinforcement in dilative soils.” Soils and Foundations 40(1):47–56, DOI: org/10.3208/sandf.40.47.
[19] Milligan, G.W., and Tei, K. (1998). “The pull-out resistance of model soil nails.” Soils and Foundations, 38(2): 179-190, DOI: 10.3208/sandf.38.2-179.
[20] Pedley, M. (1990). “The Performance of Soil Reinforcement in Bending and Shear.” Ph.D. Thesis, Wolfsan College, University of Oxford.
[21] Pei, H., Yin, J., Zhu, H., and Hong, C.Y. (2013). “Performance monitoring of a glass fiber-reinforced polymer bar soil nail during laboratory pull-out test using FBG sensing technology.” International Journal of Geomechanics, 13(4), pp. 467–472, DOI: 10.1061/ (ASCE) GM.1943-5622.0000226.
[22] Pradhan, B. (2003). “Study of pull-out behavior of soil nails in completely decomposed granite fill.” Ph.D. thesis, Department of Civil Engineering, The University of Hong Kong, Pok Fu Lam.
[23] Raju, G.V.R. (1996). “Behavior of nailed soil retaining structures.” Ph.D. thesis, Nanyang Technological University, Singapore.
[24] Rawat, S., Gupta, A.K. (2017). “Numerical modelling of pull-out of helical soil nail.” Journal of Rock Mechanics and Geotechnical Engineering, 9(4), pp. 648-658, DOI: 10.1016/j.jrmge.2017.01.007.
[25] Schlosser, F. (1991). “The multi criteria theory in soil nailing.” Ground Engineering 24(9):30–39.
[26] Schlosser, F. (Editor) (1993). “Recommendations Clouterre 1991-soil nailing recommendations 1991. Presses de l’Ecole Nationale des Ponts et Chaussees, Paris.” [English translation NTIS No. PB94-109980, U.S. Federal Highway Administration, Washington, D.C.]
[27] Su, L.J. (2006). “Laboratory pull-out testing study on soil nails in compacted completely decomposed granite fill.” PhD Thesis, Hong Kong Polytechnic University.
[28] Su, L.J., Yin, J.H., and Zhou, W.H. (2010). “Influences of overburden pressure and soil dilation on soil nail pull-out resistance.” Journal of Computers and Geotechnics, 37(4), pp. 555–564, DOI: 10.1016/j.compgeo.2010.03.004.
[29] Tokhi, H., Ren, G., and Li, J. (2016). “Laboratory study of a new screw nail and its interaction in sand Laboratory study of a new screw nail and its interaction in sand.” Journal of Computers and Geotechnics, 78, pp. 144-154, DOI: 10.1016/j.compgeo.2016.05.009.
[30] Wan-Huan, Z., and Jian-Hua, Y. (2008). “A simple mathematical model for soil nail and soil interaction analysis.” Journal of Computers and Geotechnics, 35 (3), pp. 479–488, DOI: 10.1016/j.compgeo.2007.07.001.
[31] Yin, J., and Zhou, W., (2009). “Influence of grouting pressure and overburden stress on the interface resistance of a soil nail.” Journal of Geotechnical and Geoenvironmental Engineering, 135 (9):1198–208, DOI: org/10.1061/ (ASCE) GT.1943-5606.0000045.
[32] Zhang, L.L., Zhang, L.M., and Tang, W.H. (2009). “Uncertainties of Field Pull-out Resistance of Soil Nails.” Journal of Geotechnical and Geoenvironmental Engineering, 135 (7), pp. 966-972, DOI: 10.1061/ (ASCE) GT.1943-5606.0000014.
[33] Zhang, G., Jie, C., and Liping, W. (2014). “Failure Behavior and Mechanism of Slopes Reinforced Using Soil Nail Wall under Various Loading Conditions.” Soils and Foundations, vol. 54, no. 6, Elsevier, 2014, pp. 1175–87, doi:10.1016/j.sandf.2014.11.011.
[34] Zi-Hang, D., Wei-Dong, G., Gui-Xin, Z., Yu, O., and Yan-Jia, C. (2016). “Moso Bamboo Soil-Nailed Wall and Its 3D Nonlinear Numerical Analysis.” International Journal of Geomechanics, 16(5):04016012, DOI: 10.1061/ (ASCE) GM.1943-5622.0000634. | ||
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