Chapter
Nov 12, 2013
Dynamic Model of Subgrade Using a Coupled Vehicle-Track-Subgrade Method
Authors: Xue Ning Ma [email protected], Xu Wang, Bo Liang, and Song Hong YanAuthor Affiliations
Publication: IACGE 2013: Challenges and Recent Advances in Geotechnical and Seismic Research and Practices
Abstract
It is very critical to understand the dynamic interaction of vehicle-track-subgrade for high-speed railway development. This paper presents a dynamic interaction model of vehicle-slab track-subgrade system, in which a slab track-subgrade structure is put forward as a substructure and is studied considering track irregularity excitation and displacement compatibility condition. In this model, both the actual structure of a vehicle and vibration characteristic of the substructure (including slab track, subgrade and foundation are) considered. This model not only reflects the interaction between vehicle and substructure completely, but also provides a theoretical foundation for determining design parameters of high-speed railway (especially for design parameters of track and subgrade). Research results can provide technical reference for design and construction of slab ballastless track and subgrade structure of high-speed railway.
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© 2013 American Society of Civil Engineers.
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Published online: Nov 12, 2013
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Affiliations
Lanzhou Jiaotong University, School of Civil Engineering, Lanzhou, 730070; Key Laboratory of Road & Bridge and Underground Engineering of Gansu Province, Lanzhou, 730000, China. E-mail: [email protected]
Xu Wang
Lanzhou Jiaotong University, School of Civil Engineering, Lanzhou, 730070; Key Laboratory of Road & Bridge and Underground Engineering of Gansu Province, Lanzhou, 730000, China
Bo Liang
School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074,China
Song Hong Yan
Lanzhou Jiaotong University, School of Civil Engineering, Lanzhou, 730070; Key Laboratory of Road & Bridge and Underground Engineering of Gansu Province, Lanzhou, 730000, China
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