Non-linear 2-D FE analysis for the assessment of isolation performance of wave impeding barrier in reduction of railway-induced surface waves

Abstract The establishment of wave impeding barriers (WIBs) beneath the railway track or below the protected residential buildings resting on soft soil can be commonly used to reduce the ground borne vibrations caused by high-speed train traffic. This paper deals with the non-linear 2D finite element modeling for the prediction of shielding performance of WIB on the dynamic response of vibrating coupled soil–structure system. Energy absorbing boundaries along the truncated interfaces of the unbounded nature of the underlying soil media are implemented in the time domain along with Newmark’s integration. This numerical model and its computational work were adapted with simulation of the passing train load completely account for plastic deformations of the underlying soil medium under Mohr–Coulomb failure criterion and directly predicting the reduction effect on the structural response. Extensive parametric investigations for both passive and active isolation cases under different train speeds have been performed to reveal the influence of its wave impedance ratio on the shielding efficiency. The important findings based on obtained numerical results are presented.

[1]  E. Celebi,et al.  Three-dimensional modelling of train-track and sub-soil analysis for surface vibrations due to moving loads , 2006, Appl. Math. Comput..

[2]  I. Çankaya,et al.  Field Experiments on Wave Propagation and Vibration Isolation by Using Wave Barriers , 2009 .

[3]  C.J.C. Jones,et al.  PREDICTION OF GROUND VIBRATION FROM FREIGHT TRAINS , 1996 .

[4]  S. Ahmad,et al.  Simplified design for vibration screening by open and in-filled trenches , 1991 .

[5]  Dimitris L. Karabalis,et al.  Dynamic 3‐D soil–railway track interaction by BEM–FEM , 1995 .

[6]  R. Woods.  SCREENING OF SURFACE WAVES IN SOILS , 1968 .

[7]  Yeong-Bin Yang,et al.  A 2.5D finite/infinite element approach for modelling visco‐elastic bodies subjected to moving loads , 2001 .

[8]  Victor V. Krylov,et al.  Rail movement and ground waves caused by high-speed trains approaching track-soil critical velocities , 2000 .

[9]  J. Lysmer,et al.  Finite Dynamic Model for Infinite Media , 1969 .

[10]  Isaac L. Howard,et al.  Finite-Element Modeling of Instrumented Flexible Pavements under Stationary Transient Loading , 2009 .

[11]  Nawawi Chouw,et al.  Reduction of footing response to man-made excitations by using a Wave Impeding Barrier , 2001 .

[12]  I. Çankaya,et al.  The effectiveness of wave barriers on the dynamic stiffness coefficients of foundations using boundary element method , 2006, Appl. Math. Comput..

[13]  V. Krylov.  Vibrational impact of high‐speed trains. I. Effect of track dynamics , 1996 .

[14]  Chongbin Zhao,et al.  A dynamic infinite element for three‐dimensional infinite‐domain wave problems , 1993 .

[15]  K. L. Leung,et al.  Vibration isolation by trenches in continuously nonhomogeneous soil by the BEM , 1991 .

[16]  J. Z. Zhu,et al.  The finite element method , 1977 .

[17]  O. von Estorff,et al.  Reduction of train-induced building vibrations by using open and filled trenches , 2005 .

[18]  V. Krylov,et al.  Proceedings of the Institute of Acoustics RECENT PROGRESS IN THE THEORY OF RAILWAY-GENERATED GROUND VIBRATIONS , 2018 .

[19]  N M Newmark,et al.  Development of a Transmitting Boundary for Numerical Wave Motion Calculations. , 1971 .

[20]  Stavros A. Savidis,et al.  Soil–structure interaction in the time domain using halfspace Green's functions , 2002 .

[21]  J. Barber,et al.  Surface Displacements due to a Steadily Moving Point Force , 1996 .

[22]  Maurice Petyt,et al.  Surface vibration propagation over a layered elastic half-space with an inclusion , 1999 .

[23]  P. K. Banerjee,et al.  Advanced application of bem to wave barriers in multi-layered three-dimensional soil media , 1988 .

[24]  E. Kausel.  Thin‐layer method: Formulation in the time domain , 1994 .

[25]  Ioannis Vardoulakis,et al.  Vibration isolation using open or filled trenches Part 2: 3-D homogeneous soil , 1990 .

[26]  O. C. Zienkiewicz,et al.  Infinite elements in the study of fluid-structure interaction ppoelems , 1976 .

[27]  Dimitri E. Beskos,et al.  Vibration isolation using open or filled trenches , 1986 .

[28]  Zhang Chuhan,et al.  Coupling method of finite and infinite elements for strip foundation wave problems , 1987 .

[29]  D. V. Griffiths,et al.  Programming the finite element method , 1982 .

[30]  Ralf Klein,et al.  Efficient 3D modelling of vibration isolation by open trenches , 1997 .

[31]  Reduction of structural vibrations induced by a moving load , 2002 .

[32]  G. Schmid,et al.  Two- and three-dimensional modelling of half-space and train-track embankment under dynamic loading , 2000 .