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Study on Seismic Performance of Reinforced Soil Walls to Modify the Pseudo Static Method
Authors: Majid Yazdandoust
Abstract:This study, tries to suggest a design method based on displacement using finite difference numerical modeling in reinforcing soil retaining wall with steel strip. In this case, dynamic loading characteristics such as duration, frequency, peak ground acceleration, geometrical characteristics of reinforced soil structure and type of the site are considered to correct the pseudo static method and finally introduce the pseudo static coefficient as a function of seismic performance level and peak ground acceleration. For this purpose, the influence of dynamic loading characteristics, reinforcement length, height of reinforced system and type of the site are investigated on seismic behavior of reinforcing soil retaining wall with steel strip. Numerical results illustrate that the seismic response of this type of wall is highly dependent to cumulative absolute velocity, maximum acceleration, and height and reinforcement length so that the reinforcement length can be introduced as the main factor in shape of failure. Considering the loading parameters, geometric parameters of the wall and type of the site showed that the used method in this study leads to efficient designs in comparison with other methods, which are usually based on limit-equilibrium concept. The outputs show the over-estimation of equilibrium design methods in comparison with proposed displacement based methods here.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1109601Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1832
 Jones, C. J. F. P. (1985), “Earth Reinforcement and Soil Structures”, Butterworths and Co.
 Richardson, G.N. and Lee, K.L., (1975), “Seismic Design of Reinforced Earth Walls”, Journal of the Geotechnical Engineering Division, Vol. 101, GT2, pp. 167-188.
 Richardson, G.N., Feger, A. and Lee, K.L., (1977), “Seismic testing of reinforced earth walls”, journal of geotechnical engineering, Div. ASCE 103 (1), pp. 1-17.
 Howard Jr., R. W. A., Kutter, B. L., and Siddharthan, R. (1999), "Seismic Deformation of Reinforced Soil Centrifuge Models", Proceedings of the 3rd International Conference on Geotechnical Engineering and Soil Dynamics Conference, Special Publication, ASCE, Vol. 1, No. 75, pp. 446-457.
 Hatami, K., (2003), “Seismic Analysis and Design Reinforced Soil Retaining Wall”, Journal of Material Science and Engineering, P.P. 37- 45.
 El-Emam, M., Bathurst, R., Maghdi, M., (2006), “Influence of Reinforcement Parameters on the Seismic Response of Reduced-scale Reinforced soil Retaining Wall”. Geotextiles and Geomembranes, Elsevier journal, Volume 25, Issue 1, February 2007, Pages 33-49.
 Prakash, S. and Nandkumaran.p, “Dynamic earth pressure distribution behind flexible retaining walls” , Indian Geotech.J.,Vol4, 1974, pp. 207- 224.
 FLAC Manual (2005), Ver. 5.0, Itasca, USA.
 Yazdandoust, M., "Laboratorial and Numerical Studies on Reinforced Soil and Earth whit Steel Elements", PHD Thesis, Tarbiat Modares Univercity, Iran, 2013.
 Iranian Code of Practice for Seismic Resistant Design Building, Standard No. 2800 - 05, 3rd Edition.
 Ishihara, K., Asal, A.M., 1982.,''Dynamic behavior of soils, soil amplification and soil structure interaction'', final report for working group d., UNDP/UNESCO project on earthquake risk reduction in Balkan region.
 Jafari, M.K., Shafiee, A. and Ramzkhah, A. (2002). “Dynamic properties of the fine grained soils in south of Tehran,” J. Seismol. Earthq. Eng., 4, 25–35.
 Seed, H.B., Wong, T.R., Idriss, I.M., Tokimatsu, K. Moduli and damping factors for dynamic analyses of cohesionless soils. Journal of Geotechnical Engineering 1986;112(11):1016–32.
 Emad Y. Sharif, Anis A. Al Bis; Mahmoud K. Harb., 2008, “An Application of Geophysical Techniques for Determining Dynamic Properties of the Ground in Dubailand Area, UAE.”, Arab Center for Engineering Studies.
 Jinchun Chai, John P. Carter, (2009). Deformation Analysis in Soft Ground Improvement, Springer.
 Kramer, Geotechnical Earthquake Engineering, 1996.
 Bathurst, R.J., Hatami, K., (1999), “Earthquake Response Analysis of Reinforced Soil walls Using FLAC, and Numerical Modeling in Geomechanics”, P.P.273-297.
 FHWA (2009), “Design of Mechanically Stabilized Earth Walls and Reinforced Soil Slopes”, Publication No. FHWA-NHI-10-024, National Highway Institute Office of Bridge Technology.
 Bathurst, R. J., and Hatami, K. (1998) “Influence of Reinforcement Stiffness, Length and Base Condition on Seismic Response of Geosynthetic Reinforced Soil Walls”, Proceedings of the 6th International Conference on Geosynthetics, USA, pp. 613-616.
 Huang, B., Bathurst, R. J. & Hatami, K. s(2008). “Numerical study of the influence of reinforcement length and spacing on reinforced soil segmental walls of variable height”. Proceedings of the First Pan American Geosynthetics Conference and Exhibition, 2–5 March 2008, Cancun, Mexico, IFAI, pp. 1256–1264.
 Okabe, S., 1924. General theory of earth pressure and seismic stability of retaining wall and dam. Journal of Japanese Society of Civil Engineering. Vol. 12. No. 1.
 Zarrabi-Kashani, K., 1979. "Sliding of Gravity Retaining Walls during Earthquake Vertical Acceleration and Changing Inclination of Failure Surface". M.S. Thesis, Dept. Of Civil Engineering MIT, Cambridge, USA, 1979.
 Bathurst, R.J. and Alfaro, M.C. (1997). “Review of seismic design, analysis and performance of geosynthetic-reinforced walls, slopes and embankments.” Earth Reinforcement, Ochiai, Yasufuku and Omine, Eds., Balkema, Rotterdam, The Netherlands, 887-918.
 Partovian, M., "Investigation on seismic behavior of reinforced-soil retaining walls by shaking table test", MS Thesis, Azad University, Iran, 2010.