A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Numerical Investigation of Vibrational Acceleration Level for a Ballasted Railway Track During Train Passage in Seasonally Frozen Regions
This research is aimed at developing a practical method for estimating the vertical acceleration of a ballasted railway track bed subjected to trainload in seasonally frozen regions. For this purpose, an indirect thermal-dynamic coupled two-dimensional (2D) finite element (FE) modeling was developed to simulate the thermal and dynamic responses of Harbin–Qiqihar Railway (HQR). Results show that peak values of vibrational acceleration level increase with train speed and axle load increase, but decrease with elastic and height of ballast increase. Taking the effects of the factors mentioned above, two fitting formulae were formulated to estimate vibrational acceleration level of the embankment with an attenuation coefficient, which can be used to describe the attenuation characteristics of ground vibration. In this way, the numerical model and results can be used as a reference for design, maintenance, and research on other embankments in seasonally frozen regions.
Numerical Investigation of Vibrational Acceleration Level for a Ballasted Railway Track During Train Passage in Seasonally Frozen Regions
This research is aimed at developing a practical method for estimating the vertical acceleration of a ballasted railway track bed subjected to trainload in seasonally frozen regions. For this purpose, an indirect thermal-dynamic coupled two-dimensional (2D) finite element (FE) modeling was developed to simulate the thermal and dynamic responses of Harbin–Qiqihar Railway (HQR). Results show that peak values of vibrational acceleration level increase with train speed and axle load increase, but decrease with elastic and height of ballast increase. Taking the effects of the factors mentioned above, two fitting formulae were formulated to estimate vibrational acceleration level of the embankment with an attenuation coefficient, which can be used to describe the attenuation characteristics of ground vibration. In this way, the numerical model and results can be used as a reference for design, maintenance, and research on other embankments in seasonally frozen regions.
Numerical Investigation of Vibrational Acceleration Level for a Ballasted Railway Track During Train Passage in Seasonally Frozen Regions
Lecture Notes in Civil Engineering
Tutumluer, Erol (editor) / Chen, Xiaobin (editor) / Xiao, Yuanjie (editor) / Tian, Shuang (author) / Li, Shanzhen (author) / Tang, Liang (author) / Ling, Xianzhang (author) / Kong, Xiangxun (author)
Advances in Environmental Vibration and Transportation Geodynamics ; Chapter: 36 ; 577-600
2020-04-08
24 pages
Article/Chapter (Book)
Electronic Resource
English
Dynamic Stress Analysis of a Ballasted Railway Track Bed during Train Passage
| British Library Online Contents | 2009
Dynamic Stress Analysis of a Ballasted Railway Track Bed during Train Passage
| Online Contents | 2009