Numerical Simulation of the Vibration Isolation Via a New Type of Pile Structure:the Linked Pile Row
In this study, a new kind of pile structure, namely, linked periodic pile rows, is pro posed for the vibration isolation facility.The proposed linked periodic pile rows consist of pile rows with pile tops rigidly linked by beams.To investigate the vibration isolation effect of linked pile rows, a numerical model is developed for the simulation of the dynamic response of linked pile rows.Based on the sequence Fourier transform method, a wavenumber domain boundary element method (WDBEM) is developed for the pile-soil system.By using the linking conditions between the pile tops and linking beams as well as the periodicity condition for the periodic system, the WD BEM model for the beam-pile-soil system is established.With the proposed WDBEM model, the space domain solution can be retrieved by the inversion of the sequence Fourier transforms.In this paper, the vibration isolation effect of a linked single pile row is investigated and compared with that of the free pile row.The comparison suggests that the linked pile row usually generates a better isolation vibration effect than the free pile row.Hence, linked pile row is a more effective vibration isolation facility than usual free pile row.
linked pile rows vibration isolation half-space soil the sequence Fourier transform wavenumber domain boundary element method (WDBEM)
J.F.Lu X.Zhang
Department of Civil Engineering, Jiangsu University, Zhenjiang, P.R.China
国际会议
第六届国际环境振动学术研讨会(6th International Symposium on Environmental Vibration)(ISEV2013)
上海
英文
399-407
2013-11-08（万方平台首次上网日期，不代表论文的发表时间）