Influences of pavement irregularity on ground vibrations generated by moving traffic load

被引：1
|
作者：
Chen Y. [1 ,2 ]
Cai Y.-Q. [1 ,3 ]
Cao Z.-G. [1 ]
Wang H.-J. [4 ]
机构：
[1] Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou
[2] College of Civil Engineering and Architecture, Zhejiang University of Water Resources and Electric Power, Hangzhou
[3] College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou
[4] Shaoxing Keqiao District Traffic Engineering Quality and Safety Supervision Station, Shaoxing
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2019年 / 53卷 / 06期
关键词：
Biot's theory; Ground vibration; Layered ground; Pavement irregularity; Traffic load;
D O I：
10.3785/j.issn.1008-973X.2019.06.002
中图分类号：
学科分类号：
摘要：
A traffic load-uneven pavement-double-layered ground coupling model was established in order to study the influences of pavement irregularity on the vibrations of layered ground generated by moving traffic load. The upper and lower soil layers were simulated as elastic medium and a fully saturated poroelastic half-space governed by Biot's theory, respectively. The pavement was simplified as a Kirchhoff thin plate, and the road surface irregularities were simulated by sine curves. The wheel-road dynamic loading was obtained through the linear Hertizian contact model. The governing equations of this coupling model were solved by the Fourier transform and the time-domain results were obtained by applying the inverse fast Fourier transform (IFFT). Numerical results show that the influence of wheel-pavement dynamic loading caused by pavement irregularity on the vibration of layered foundations cannot be ignored. When the shear modulus of the upper soil was small, the acceleration of the ground surface caused by the dynamic loading was greater than that caused by the axle load, which is the main factor that causes the ground surface vibration response. As the shear modulus of the upper soil layer increased, the vibration caused by the dynamic loading decreased, but it is still non-negligible. In addition, the dynamic loading is the main factor that causes the excess pore water pressure response in the lower saturated soil layer. © 2019, Zhejiang University Press. All right reserved.
引用
收藏
页码：1031 / 1039
页数：8
相关论文
共 24 条
  • [1] Sneddon I., The stress produced by a pulse of pressure moving along the surface of a semi-infinite solid, Rendiconti del Circolo Matematico di Palermo, 1, 1, pp. 57-62, (1952)
  • [2] Sneddon I., Fourier transforms, (1951)
  • [3] Eason G., The stresses produced in a semi-infinite solid by a moving surface force, International Journal of Engineering Science, 2, 6, pp. 581-609, (1965)
  • [4] Biot M., Mechanics of deformation and acoustic propagation in porous media, Journal of Applied Physics, 33, 4, pp. 1482-1498, (1962)
  • [5] Biot M., Theory of propagation of elastic waves in a fluid saturated porous solid. I. Low frequency range, Journal of the Acoustical Society of America, 28, 2, pp. 168-178, (1956)
  • [6] Siddharthan R., Zafir Z., Norris G., Moving load response of layered soil. I: Formulation
  • [7] Ⅱ: Verification and application, Journal of Engineering Mechanics, 119, pp. 2052-2089, (1993)
  • [8] Cai Y.Q., Sun H.L., Xu C.J., Steady state responses of poroelastic half-space soil medium to a moving rectangular load, International Journal of Solids and Structures, 44, 22, pp. 7183-7196, (2007)
  • [9] Cai Y.-Q., Sun H.-L., Xu C.-J., Response of beams on poroelastic half-space soil medium to moving load, Chinese Journal of Computational Mechanics, 25, 2, pp. 156-161, (2008)
  • [10] Cai Y.Q., Cao Z.G., Sun H.L., Et al., Dynamic response of pavements on poroelastic half-space soil medium to a moving traffic load, Computers and Geotechnics, 36, 1, pp. 52-60, (2009)
123