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Numerical Investigations on Group Piles’ Lateral Bearing Capacity Considering Interaction of Soil and Structure

Authors: Mahmoud Hassanlourad, Reza Dinarvand, Mahdi Sadeghian, Alireza Ardakani


In this research, the behavior of monopiles, under lateral loads, was investigated with vertical and oblique piles by Finite Element Method. In engineering practice when soil-pile interaction comes to the picture some simplifications are applied to reduce the design time. As a simplified replacement of soil and pile interaction analysis, pile could be replaced by a column. The height of the column would be equal to the free length of the pile plus a portion of the embedded length of it. One of the important factors studied in this study was that columns with an equivalent length (free length plus a part of buried depth) could be used instead of soil and pile modeling. The results of the analysis show that the more internal friction angle of the soil increases, the more the bearing capacity of the soil is achieved. This additional length is 6 to 11 times of the pile diameter in dense soil although in loose sandy soil this range might increase.

Keywords: Soil-Structure Interaction, pile group, lateral bearing capacity, Depth of fixity, Oblique pile

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[1] Matlock, H., & Reese, L.C. (1960) “Generalized solutions for laterally loaded piles”. J. Soil Mech. Found. Div., 86: pp. 63–91.
[2] Reese, L.C., Cox, W.R., Koop, F.D., (1974) “Analysis of laterally loaded piles in sand”. Proceedings of 6th Annual Offshore Technology Conference, Houston, TX, pp. 473-483.
[3] O’neill, M., Murchison, J., (1983) ”An evaluation of p-y relationship in sands”, report GTDF02-83, Department of Civil Eng., University of Huston, May 1983.
[4] Lesny, K., Paikowsky, S.G., Gurbuz, A., (2007) ”Scale effects in lateral load response of large diameter monopiles”, Geo-Denver 2007: New peaks in geotechnics. Colorado: ASCE; 40.
[5] Reese, L.C., Cox W.R., Koop, F.D., (1975) “Field testing and analysis of laterally loaded piles in stiff clay”. In: Proceedings of 7th offshore technology conference, Richardson, TX, No. 2312; pp. 671–690.
[6] Kim, Y., Jeong, S., Lee, S., (2011) "Wedge failure analysis of soil resistance on laterally loaded piles in clay”, J. Geotech. Geoenviron. Eng.; 137: pp. 678–694.
[7] Norris, G., (1986) “Theoretically based BEF laterally loaded pile analysis”, In. Proceedings of the 3rd international conference on numerical methods in offshore piling, Paris, France; pp. 361–386.
[8] Ashour, M., Norris, G., Pilling, P., (1998), “Lateral loading of a pile in layered soil using the strain wedge model”, J. Geotech. Geoenviron. Eng.; 124: pp. 303–315.
[9] Brown, D.A., Shie, C.F., (1991) “Some numerical experiments with a three dimensional finite element model of a laterally loaded pile”, Comput. Geotech.; 12: pp. 149–162.
[10] Fan, C.C., Long, J.H., (2005) “Assessment of existing methods for predicting soil response of laterally loaded piles in sand”, Comput. Geotech.; 32: pp. 274–289.
[11] Chik, Z.H., Abbas, J.M., Taha, M.R., (2009) “Lateral behavior of single pile in cohesionless soil subjected to both vertical and horizontal loads”, Eur. J. Sci. Res.; 29: pp. 194–205.
[12] Kim, Y. & Jeong, S., (2011) “Analysis of soil resistance on laterally loaded piles based on 3D soil–pile interaction”, Comput. Geotech.; 38: pp. 248–257.
[13] Reese, L.C. & Van Impe, W.F., (2011), "Single piles and pile groups under lateral loading", 2nd Edition. London: Taylor & Francis Group.
[14] Ashour, M., & Ardalan, H., (2011), "Employment of the -Multiplier in Pile-Group Analysis", Journal of Bridge Engineering.
[15] Hokmabadi A.S., Fakher A., Fatahi. B. (2012) “Full scale lateral behaviour of monopiles in granular marine soils” Marine Structures, 29: pp. 198–210.
[16] Ashour, M., & Norris, G., (2000) "Modeling Lateral Soil-Pile Response Based on Soil-Pile Interaction", Journal of Geotechnical and Geoenvironmental Engineering.
[17] Randolph, M.F., (1981) “The response of flexible piles to lateral loading”, Géotechnique, 31, pp. 247–259.
[18] Awad, A.S., Antonopoulos, I., Sadeghian, M. (2017), “Case study: Geotechnical design of bored piles in rock for the Kawarau Falls Bridge”, Proc. 20th NZGS Geotechnical Symposium. Eds. GJ Alexander & CY Chin, Napier.
[19] Sadeghian, M., Hassanlourad, M., Ardakani, A., (2017), “Investigating the behavior of dolphin structures under lateral static loading considering soil-structure interaction”, 1st National Conference on Highway and Transportation Engineering, Guilan University. (in Persian)
[20] Asgarian, B., Lesani, M., (2009) “Pile–soil-structure interaction in pushover analysis of jacket offshore platforms using fiber elements” J. of Constructional Steel Research, 65: pp. 209–218.
[21] Hamedi, F., Hassanlourad, M., Hassanlourad, Mo., (2016), “Investigation of lateral loaded mono-pile behavior considering soil and structure interaction”, Sharif Scientific Journal, 32.2(3.1), pp. 71-78. (in Persian)
[22] Seifi, H., Fakher, A., (2007) ‘Feild study of monopile behavior at Pars Asalouyeh Petrochemical Port’, Proc. 9th Marine Industries. (in Persian)