Abstract
This paper aims to present a theoretical method to study the bearing performance of vertically loaded large-diameter pipe pile groups. The interactions between group piles result in different bearing performance of both a single pile and pile groups. Considering the pile group effect and the skin friction from both outer and inner soils, an analytical solution is developed to calculate the settlement and axial force in large-diameter pipe pile groups. The analytical solution was verified by centrifuge and field testing results. An extensive parametric analysis was performed to study the bearing performance of the pipe pile groups. The results reveal that the axial forces in group piles are not the same. The larger the distance from central pile, the larger the axial force. The axial force in the central pile is the smallest, while that in corner piles is the largest. The axial force on the top of the corner piles decreases while that in the central pile increases with increasing of pile spacing and decreasing of pile length. The axial force in side piles varies little with the variations of pile spacing, pile length, and shear modulus of the soil and is approximately equal to the average load shared by one pile. For a pile group, the larger the pile length is, the larger the influence radius is. As a result, the pile group effect is more apparent for a larger pile length. The settlement of pile groups decreases with increasing of the pile number in the group and the shear modulus of the underlying soil.
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References
Achmus, M., Abdel-Rahman, K., and Kuo, Y. S., 2007. Numerical modelling of large diameter steel piles under monotonic and cyclic horizontal loading. 10th International Symposium on Numerical Models in Geomechanics. Rhodes, 453–459.
Bian, C., Jiang, W., Greatbatch, R. J., and Ding, H., 2013. The suspended sediment concentration distribution in the Bohai Sea, Yellow Sea and East China Sea. Journal of Ocean University of China, 12 (3): 345–354.
Castelli, F., and Maugeri, M., 2002. Simplified nonlinear analysis for settlement prediction of pile groups. Journal of Geotechnical and Geoenvironmental Engineering, 128 (1): 76–84.
Chen, G., Li, W., Kong, Q., Liu, S., Lv, C., and Tian, F., 2012. Recent progress of marine geographic information system in China: A review for 2006–2010. Journal of Ocean University of China, 11 (1): 18–24.
Cho, J., Lee, J. H., Jeong, S., and Lee, J., 2012. The settlement behavior of piled raft in clay soils. Ocean Engineering, 53: 153–163.
Ding, X. M., Liu, H. L., Liu, J. Y., and Chen, Y. M., 2011. Wave propagation in a pipe pile for low strain integrity testing. Journal of Engineering Mechanics, 137 (9): 598–609.
Fei, K., 2004. Theory and practice of thin-wall pipe pile using cast-in-situ concrete. PhD thesis. Hohai University (in Chinese with English abstract).
Focht, J. A., and Koch, K. J., 1973. Rational analysis of the lateral performance of offshore pile groups. Proceedings of 5th Offshore technical Conference, Houston, 2: 701–708.
Ismael, N. F., 2011. Axial load tests on bored piles and pile groups in cemented sands. Journal of Geotechnical and Geoenvironmental Engineering, 127 (9): 766–773.
Liu, E. Y. F., 2008. Prevention of cracking for large diameter concrete pipe piles. 8th International Conference on the Application of Stress-Wave Theory to Piles. Lisbon, Portugal, 277–281.
Liu, H. L., Chu, J., and Deng, A., 2009a. Use of large-diameter, cast–in situ concrete pipe piles for embankment over soft clay. Canadian Geotechnical Journal, 46 (8): 915–927.
Liu, H. L., Fei, K., Deng, A., and Zhang, T., 2005. Erective sea embankment with PCC piles. China Ocean Engineering, 19 (2): 339–348.
Liu, H. L., Ng, C. W. W., and Fei, K., 2007. Performance of a geogrid-reinforced and pile-supported highway embankment over soft clays: A case study. Journal of Geotechnical and Geoenvironmental Engineering, 133 (12): 1483–1493.
Liu, J. L., 2004. Group effects and some problems on the concept design of pile goup foundation under vertical load. China Civil Engineering Journal, 37 (1): 78–83 (in Chinese).
Liu, R., Yan, S. W., and Li, Z. H., 2009b. Soil plug effect prediction and pile driveability analysis for large-diameter steel piles in ocean engineering. China Ocean Engineering, 23 (1): 107–118.
McCabe, B. A., 2002. Experimental investigations of driven pile group behaviour in Belfast Soft Clay. PhD thesis. Department of Civil Engineering, Trinity College, Dublin.
McCabe, B. A., and Lehane, B. M., 2006. The behavior of axially loaded pile groups driven in clayey silt. Journal of Geotechnical and Geoenvironmental Engineering, 132 (3): 401–410.
Potty, G. R., Miller, J. H., and Kim, H., 2013. Offshore impact pile driving as a source of opportunity for geoacoustic investigations. The Journal of the Acoustical Society of America, 134 (5): 4150–4150.
Randolph, M. F., 1977. A theoretical study of the performance of piles. PhD thesis. University of Cambridge.
Randolph, M. F., and Wroth, C. P., 1978. An analysis of the deformation of vertically loaded piles. Journal of Geotechnical Engineering Division, 104, GT12.
Randolph, M. F., and Wroth, C. P., 1979. An analysis of the vertical deformation of pile groups. Geotechnique, 29 (4): 423–439.
Stewart, D. P., 1992. Lateral loading of piled bridge abutments due to embankment construction. PhD thesis. University of Western Australia, Perth.
Tan, H. M., 2008. Full scale model test and analyses on characteristics of cushionin cast-in-situ concrete large diameter pipe pile composite foundation. PhD thesis. Hohai University (in Chinese with English abstract).
Technical Code for Building Pile Foundations (JGJ94-2008., 2008. China Building Industry Press, Beijing (in Chinese).
Timoshenko, S. P., and Goodier, J. N., 1970. Theory of Elasticity. 3rd Edition, McGraw-Hill, New York, 343–395.
Xu, K. J., and Poulos, H. G., 2000. General elastic analysis of piles and pile groups. International Journal for Numerical and Analytical Methods in Geomechanics, 24: 1109–1138.
Yan, S. W., Zhou, Q. H., Liu, R., and Dong, W., 2011. Pit bearing capacity effect on status of soil plug during pile driving in ocean engineering. China Ocean Engineering, 25 (2): 295–304.
Yu, X. D., Yan, S. W., and Sun, W. H., 1997. Estimation of axial pile bearing capacity according to shear strength parameters of soil. China Ocean Engineering, 11 (2): 235–242.
Zhao, M. H., Zou, D., and Zou, X. J., 2006. Settlement calculation of pile groups by load transfer method. Engineering Mechanics, 23 (7): 119–123 (in Chinese).
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Ding, X., Zhang, T., Li, P. et al. A theoretical analysis of the bearing performance of vertically loaded large-diameter pipe pile groups. J. Ocean Univ. China 15, 57–68 (2016). https://doi.org/10.1007/s11802-016-2549-0
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DOI: https://doi.org/10.1007/s11802-016-2549-0