Journal
APPLIED MATHEMATICAL MODELLING
Volume 39, Issue 12, Pages 3331-3340Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.apm.2014.10.050
Keywords
Poroelastic foundation; High speed train; Sleepers; Vertical deflection; Fourier transform
Funding
- National Natural Science Foundations of China [11227201, 11472179, 11472181]
- National Key Basic Research Program of China [2012CB723300]
Ask authors/readers for more resources
This paper is dedicated to predict the vibration of water-saturated poroelastic ground induced by high speed train with a number of carriages. The model for the railway track consists of two rails with sleepers on water-saturated poroelastic balf-space. The axle loading of the train is moving at a constant speed. The poroelastic half-space is characterized by Biot's dynamic poroelastic theory, and the general solutions are obtained by Fourier transform. The solution of the steady-state deflection of the rails is obtained in a semi-analytical form, and the vertical deflection of foundation and its dependence on the velocity of the train is analyzed. Analyses show that the methods dealing with the elastic soil medium are only limited to the response of low train speed. The effects of damping property and the intrinsic permeability of the soil on the dynamic response show significant difference with the increase of train speed. The effect of the number of sleepers under the rails is also examined. Excellent agreement with the exiting solutions validates the present model. (C) 2014 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available