Study of the Influence of Sediment Properties on Complex Impedance at the Head of Rock-Socketed Pile

Abstract:

Based on virtual soil pile model, the influence of sediment properties on complex impedance at the head of rock-socketed pile is theoretically investigated by virtue of Laplace transform technique and impedance function transfer method. Firstly, the sediment under pile toe is assumed to be virtual soil pile which the cross-section area is the same as the pile. The layered soils surrounding pile are described with plane strain model. Then, by means of initial conditions and boundary conditions of the soil-pile system, the complex impedance at rock-socketed pile head in frequency domain is derived at condition of arbitrary excitation on the pile head. At last, by using parametric study method, the influence of sediment properties on complex impedance at rock-socketed pile head is studied. It is shown that sediment properties have significant influence on complex impedance at the head of rock-socketed pile.

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 2939-2944
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.2939
• Online since: October 2011
• Authors: Kui Hua Wang, Wen Bing Wu, Deng Hui Wu, Zhi Qing Zhang
• Keywords: Complex Impedance, Laplace Transform, Rock-Socketed Pile, Sediment, Virtual Soil Pile

References

[1] H.D. Wang and S.P. Shang: Journal of Vibration Engineering Vol. 19 (2006), p.258 (in Chinese)

[2] K.H. Wang, B.H. Li, K.H. Xie and G.X. Zeng: Journal of Zhejiang University (Natural Science) Vol. 32 (1998), p.545 (in Chinese)

[3] D.S. Kong, M.T. Lan and Q. Yang: World Earthquake Engineering Vol. 21 (2005), p.12 (in Chinese)

[4] T. Nagami and K. Kongai: Journal of Engineering Mechanics ASCE Vol. 112 (1986), p.1241

[5] K.H. Wang, K.H. Xie and G.X. Zeng: China Civil Engineering Journal Vol. 31 (1998), p.56(in Chinese)

[6] T. Wang and X.M. Huang: Earthquake Engineering and Engineering Vibration Vol. 26 (2006), p.205(in Chinese)

[7] K.H. Wang, W.B. Wu, Z.Q. Zhang and C.J. Leo: Computers and Geotechnics Vol. 37 (2010), p.536

[8] M.F. Randolph, A.J. Deeks: Proc. 4th Int. Conf. on the application of stress wave theory to piles, The Hague (1992), p.3

[9] J. Lysmer, F.E. Richart: Soil Mechanical and Foundation Division, ASCE Vol. 2 (1966), p.65

[10] X. Zeng, R.K.N.D, Rajapakse: Journal of Engineering Mechanics ASCE Vol. 125 (1999), p.1048

[11] Y.Q. Cai, G. Chen, C.J. Xu and D.Z. Wu: Soil Dynamics and Earthquake Engineering Vol. 26 (2006), p.1143

[12] M. Novak and F. Aboul-Ella: Journal of Engineering Mechanics ASCE Vol. 104 (1978), p.643

[13] M. Novak, T. Nogami and F. Aboul-Ella: Journal of Engineering Mechanics ASCE Vol. 104 (1978), p.953