scholarly journals FIELD MEASUREMENT RESULT AND FUTURE PREDICTION OF GROUND VIBRATION LEVELS ALONG THE ULTRA HIGH SPEED RAILWAY

2012 ◽  
Vol 68 (1) ◽  
pp. 151-166
Author(s):  
Mamoru UNO ◽  
Takaaki NAGAOSA ◽  
Yozo FUJINO ◽  
Kimitoshi ASHIYA ◽  
Kazuhiko MORIKAWA
Keyword(s):  
Field Measurement ◽  
High Speed ◽  
Ground Vibration ◽  
High Speed Railway ◽  
Measurement Result ◽  
Ultra High Speed ◽  
Future Prediction

Isolation of ground vibration induced by high speed railway by DXWIB: Field investigation

2020 ◽  
Vol 131 ◽  
pp. 106039 ◽  
Author(s):  
M. Gao ◽  
S.P. Tian ◽  
Y. Wang ◽  
Q.S. Chen ◽  
G.Y. Gao
Keyword(s):  
High Speed ◽  
Ground Vibration ◽  
Field Investigation ◽  
High Speed Railway

Analysis and Prediction of Ground Vibration Induced by High-Speed Train

2013 ◽  
Vol 779-780 ◽  
pp. 731-738 ◽  
Author(s):  
Ke Xin Zhang ◽  
Jian Wei Yao ◽  
Ze Ping Zhao
Keyword(s):  
Neural Network ◽  
Test Data ◽  
High Speed ◽  
Ground Vibration ◽  
Vertical Vibration ◽  
Orthogonal Test ◽  
Vibration Level ◽  
High Speed Train ◽  
High Speed Railway ◽  
Vibration Attenuation

The principal aim of this paper is to determine the reasonable design parameters of high-speed railway vibration attenuation. The orthogonal test method is used to design the test of ground vibration induced by high-speed train. Four main factors that impact the maximum ground vertical vibration level are selected, and different values are given to each factor, so 8 groups of combinations can be obtained by using orthogonal test technique. Each group test data of the maximum ground vertical vibration level can be obtained by conducting vehicle testing on-track. In this paper, the primary and secondary factors that impact the maximum ground vertical vibration level are determined by range analysis. Moreover, the neural network theory is used to establish a model of the ground vertical vibration level, and this model can be trained and verified by the test data. The impact factors can be predicted by the method of combining orthogonal test and neural network concerning the specified vibration limit, and the value of maximum ground vertical vibration level with the predicted factors meets the requirement of accuracy. The conclusions provide a valuable reference to the vibration attenuation design of the high-speed railway.

Train Detection by Magnetic Field Measurement with Giant Magnetoresistive Sensors for High-Speed Railway

2013 ◽  
Vol 284-287 ◽  
pp. 2102-2114 ◽  
Author(s):  
Shu Qi Zhang ◽  
Wing Kin Lee ◽  
Philip W.T. Pong
Keyword(s):  
Magnetic Field ◽  
Field Measurement ◽  
High Speed ◽  
Detection System ◽  
Magnetic Field Measurement ◽  
Signaling System ◽  
High Speed Rail ◽  
High Speed Railway ◽  
Rail System ◽  
Safety And Reliability

Train detection, as part of the railway signaling system, is important for safe operation of high-speed railway. The recent flourishing development of high-speed railway stimulates the research need of train detection technology to enhance the safety and reliability of train operation. This paper proposes a new technique for train detection through magnetic field measurement by giant magnetoresistive sensors. This technology was studied by the analysis of magnetic field distribution in the high-speed rail system obtained from modeling and simulation. The results verify the feasibility for detection of train presence, number of rolling stocks, speed, and length. It can overcome the limitations of track circuits and provide additional measurement capabilities to the signaling system. This detection system can be built with low cost and minimal maintenance load as well as compacted construction. Therefore, it may serve as a new train detection system to help improve the current systems, enhancing and promoting the safety and reliability of high-speed rail system.

scholarly journals DEVELOPMENT OF NOISE MITIGATION FACILITIES ALONG THE ULTRA HIGH SPEED RAILWAY

2017 ◽  
Vol 73 (2) ◽  
pp. 399-412
Author(s):  
Takaaki NAGAOSA ◽  
Junichiro KUBO ◽  
Tetsuya DOI ◽  
Gojiro NOZAWA ◽  
Kiyoshi NAGAKURA ◽  
...  
Keyword(s):  
High Speed ◽  
Noise Mitigation ◽  
High Speed Railway ◽  
Ultra High Speed

Field Measurement of Dynamic Properties of Honam High-Speed Railway Bridges

2021 ◽  
Vol 24 (4) ◽  
pp. 386-394
Author(s):  
Seunghoo Jeong ◽  
Hyunmin Kim ◽  
Sung Il Kim ◽  
Jeong-Hwan Jang ◽  
Kyoung-Chan Lee
Keyword(s):  
Field Measurement ◽  
High Speed ◽  
Dynamic Properties ◽  
High Speed Railway ◽  
Railway Bridges
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