کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6769687 | 1431679 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Using the 2.5D FE and transfer matrix methods to study ground vibration generated by two identical trains passing each other
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
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چکیده انگلیسی
Ground and track vibrations are important environmental and safety issues which must be properly addressed when planning and operating a high-speed railway. In the past most of the research is directed to ground and track vibrations induced by a single train. To save land and construction cost, many double-track railways are built in such a way that the two tracks are narrowly separated, e.g. only by 5â¯m. Thus, this is a common operational situation for two high-speed trains of the same design to pass each other closely. The relative speed of the two trains can be as high as 600â¯km/h if the trains run at 300â¯km/h. This may cause many new safety, ride comfort and environmental issues including ground and track vibrations. In this paper, a method is established by combining the wavenumber finite method and transfer matrix method, verified by comparison with the two-and-half dimensional finite and boundary element methods (2.5D FEM-BEM), and applied to investigate track and ground vibrations generated by two sets of moving axle loads passing each other. The track-ground system is a typical non-ballasted and slab double track-embankment-layered ground system. The investigation shows that, the environmental vibration due to two passing trains has spectial features which should taken into account when planning a railway line. When evaluating ground vibration by measurement, the measurement points must be chosen carefully, since the location of the maximum response along a given line parallel with the track depends on the relative position of the two trains.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Dynamics and Earthquake Engineering - Volume 114, November 2018, Pages 495-504
Journal: Soil Dynamics and Earthquake Engineering - Volume 114, November 2018, Pages 495-504
نویسندگان
Gong Cheng, Qingsong Feng, Xiaozhen Sheng, Ping Lu, Shuming Zhang,