A theoretical analysis of vertical dynamic response of large-diameter pipe piles in layered soil

详细信息    查看全文

• 作者：Xuan-ming Ding (1) (2)
  Chang-jie Zheng (2)
  Han-long Liu /a> (1) (2)
  
• 关键词：dynamic response ; large ; diameter pipe pile ; layered soil ; velocity admittance ; dynamic stiffness
• 刊名：Journal of Central South University
• 出版年：2014
• 出版时间：August 2014
• 年：2014
• 卷：21
• 期：8
• 页码：3327-3337
• 全文大小：1,081 KB
• 参考文献：1. WANG Kui-hua, WU Wen-bing, ZHANG Zhi-qing, CHIN Jian-Leo. Vertical dynamic response of an inhomogeneous viscoelastic pile [J]. Computers and Geotechnics, 2010, 37(4): 536-44. CrossRef
  2. MANNAA B, BAIDYAB D K. Dynamic nonlinear response of pile foundations under vertical vibration-Theory versus experiment [J]. Soil Dynamics and Earthquake Engineering, 2010, 30(6): 456-69. CrossRef
  3. YANG Xiao, PAN Yuan. Axisymmetrical analytical solution for vertical vibration of end-bearing pile in saturated viscoelastic soil layer [J]. Applied Mathematics and Mechanics, 2010, 31(2): 193-04. CrossRef
  4. BARANOV V A. On the calculation of excited vibrations of an embedded foundation [J]. Voprosy Dynamiki i Prochnocti, 1967, 14: 195-09. (in Russian)
  5. NOVAK M, NOGAMI T, ABOULELLA F. Dynamic soil reactions for plane strain case [J]. Journal of the Engineering Mechanics Division, ASCE, 1978, 104(4): 953-59.
  6. NOGAMI T, NOVAK M. Soil-pile interaction in vertical vibration [J]. Earthquake Engineering and Structural Dynamics, 1976, 4(3): 277-93. CrossRef
  7. RAJAPAKSE R K N D, SHAH A H. On the longitudinal harmonic motion of an elastic bar embedded in an elastic half-space [J]. International Journal of Solids and Structures, 1987, 23(2): 267-85. CrossRef
  8. NOGAMI T, KONAGAI K. Time domain axial response of dynamically loaded pile groups [J]. Journal of Engineering Mechanics, ASCE, 1987, 113(3): 417-30. CrossRef
  9. MILITANO G, RAJAPAKSE R K N D. Dynamic response of a pile in a multi-layered soil to transient torsional and axial loading [J]. Geotechnique, 1999, 49(1): 91-09. CrossRef
  10. HU Chang-bin, HUANG Xiao-ming. A quasi-analytical solution to soil-pile interaction in longitudinal vibration in layered soils considering vertical wave effect on soils [J]. Earthquake Engineering and Earthquake Vibration, 2006, 26(4): 205-11. (in Chinese)
  11. LIU Han-long, CHU Jian, DENG An. Use of large-diameter cast-in situ concrete pipe piles for embankment over soft clay [J]. Canadian Geotechnical Journal, 2009, 46(8): 915-27. CrossRef
  12. LIU Han-long, KONG Gang-qiang, DING Xuan-ming, CHEN Yu-min. Performances of large-diameter cast in-place concrete pipe pile and pile group under lateral load [J]. Journal of Performance of Constructed Facilities, ASCE, 2011, 27(2): 191-02. CrossRef
  13. LIU Zhi-ping, LIU Han-long, TAN Hui-ming. Application of PCC pile in soil improvement of highway [J]. Journal of Central South University of Technology, 2008, 15(s2): 108-13. CrossRef
  14. DING Xuan-ming, LIU Han-long, ZHANG Bo. High-frequency interference in low strain integrity testing of large-diameter pipe piles [J]. Science China Technological Sciences, 2011, 54(2): 420-30. CrossRef
  15. LIU E Y F. Prevention of cracking for large diameter concrete pipe piles [C]// 8th International Conference on the Application of Stress-Wave Theory to Piles. Lisbon, PORTUGAL, 2008: 277-81.
  16. KONG Gang-qiang, YANG Qing, ZHENG Peng-yi, LUAN Mao-tian. Evaluation of group effect of pile group under dragload embedded in clay [J]. Journal of Central South University of Technology, 2009, 16(3): 0503-512. CrossRef
  17. LIU Run, YAN Shu-wang, LI Zhi-hua. Soil plug effect prediction and pile driveability analysis for large-diameter steel piles in ocean engineering [J]. China Ocean Engineering, 2009, 23(1): 107-18.
  18. ACHMUS M, ABDELRAHMAN K, KUO Y S. Numerical modelling of large diameter steel piles under monotonic and cyclic horizontal loading [C]// 10th International Symposium on Numerical Models in Geomechanics. Rhodes, GREECE, 2007: 453-59.
  19. DING Xuan-ming, LIU Han-long. Simplified analytical method of vertical dynamic response of cast-in-situ concrete thin-wall pipe piles in axisymmetric homogeneous viscoelastic soil [J]. Rock and Soil Mechanics, 2008, 29(12): 3353-359. (in Chinese)
  20. DING Xuan-ming, LIU Han-long, LIU Jin-yuan, CHEN Yu-min. Wave propagation in a pipe pile for low-strain integrity testing [J]. Journal of Engineering Mechanics, ASCE, 2011, 117(9): 598-09. CrossRef
  21. DING Xuan-ming. Test study and analytic method research on vertical vibratory response of cast-in-situ concrete large-diameter pipe pile [D]. Nanjing: Hohai University, 2008. (in Chinese)
  
• 作者单位：Xuan-ming Ding (1) (2)
  Chang-jie Zheng (2)
  Han-long Liu /a> (1) (2)
  
  1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, 210098, China
  2. College of Civil Engineering, Chongqing University, Chongqing, 400045, China
  
• ISSN：2227-5223

文摘

Considering the viscous damping of the soil and soil-pile vertical coupled vibration, a computational model of large-diameter pipe pile in layered soil was established. The analytical solution in frequency domain was derived by Laplace transformation method. The responses in time domain were obtained by inverse Fourier transformation. The results of the analytical solution proposed agree well with the solutions in homogenous soil. The effects of the shear modulus and damping coefficients of the soil at both outer and inner sides of the pipe pile were researched. The results indicate that the shear modulus of the outer soil has more influence on velocity admittance than the inner soil. The smaller the shear modulus, the larger the amplitude of velocity admittance. The velocity admittance weakened by the damping of the outer soil is more obvious than that weakened by the damping of the inner soil. The displacements of the piles with the same damping coefficients of the outer soil have less difference. Moreover, the effects of the distribution of soil layers are analyzed. The results indicate that the effect of the upper soil layer on dynamic response of the pipe pile is more obvious than that of the bottom soil layer. A larger damping coefficient of the upper layer results in a smaller velocity admittance. The dynamic response of the pipe pile in layered soil is close to that of the pipe pile in homogenous soil when the properties of the upper soil layer are the same.