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Environmental Vibration Characteristics Analysis of Zhengzhou-Xian High-Speed Railway Weinan North Elevated Station

Author: XiangZuo
Tutor: HeYuLong
School: Southwest Jiaotong University
Course: Environmental Science
Keywords: elevated stations of high-speed railway Zhengzhou-Xian high-speed railway environmental vibration Weinan North station
CLC: U441.3
Type: Master's thesis
Year: 2011
Downloads: 85
Quote: 3
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Abstract


With the rapid development of our national economy, the high-speed railway systems have got continuous improvement and development. In the meantime,the elevated rail systems play important roles in the construction of high-speed railways because of its less covery of area and more utilization of space. However, followed by the development, it also causes a series of environmental problems including noise, vibration. This article mainly focuses on the issues of environmental vibration caused by elevated stations of high-speed railway.This article obtains data by measuring the environmental vibration level at three different survey stations. These three survey stations are all along the Zhengzhou-Xian high-speed railway, include the inside and outside of the waiting room of Weinan North station, the Zhengzhou end internal of the station and the underneath of viaduct outside the station. Then by analyzing and comparing the data, the article reaches the conclusion of different environmental vibration levels between different directions, different area of the station and different structures. This conclusion has promoted some guidance on the control of vibration caused by elevated station. The last content of this article is predicting the environmental vibration level by using the prediction models, and by comparing the predicted data to the measured data, this article analyzes the reason why there are differences between the predicted data and the measured data. After the prediction, the article also discusses the correction factors which are proper to the high-speed railways of our country.The results show that in the three survey stations, the Zhengzhou end internal has the highest environmental vibration level for about 70dB. Between the inside of the waiting room and the underneath of the viaduct, the environmental vibration level of the latter is higher than that of the former. This article hopes that it will have certain reference value on the control of environmental vibration caused by elevated stations along the high-speed railways.

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CLC: > Transportation > Road transport > Bridges and Culverts > Structural principles, structural mechanics > Bridge vibration and damping device
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