NDLI: Study on the ground vibrations laws and influential parameters subjected to impact load

Content Provider	IEEE Xplore Digital Library
Author	Chen Jianguo Xiao Junhua
Copyright Year	2010
Description	Author affiliation: Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China (Xiao Junhua) \|\| School of Civil Engineering, Shijiazhuang Railway Institute, Shijiazhuang 050043, China (Chen Jianguo)
Abstract	Usually the study of environmental vibration subjected to impact load is limited to strong impact load such as blasting, while lack of concerns of other styles of impact loads. A field impact test on ground surface was carried our by a heavy hammer, in which the accelerations of ground vibration were achieved. The time history curves of the accelerations are typical pulse property. Through Fourier Transformation on the measured data shows that the main frequency of ground vibrations ranges in 10–100Hz, and most of them concentrated in several key points. The accelerations were analyzed according to the ISO2631 and the vibration levels were found to be 68–92dB. In addition, an FEM model was established to simulate the ground vibrations subjected to impact load and the calculated results agree well with the test ones. In the analysis, such influential parameters as soil elastic modulus, density and weight of hammer were considered. The results show that the ground acceleration levels increase monotonously with impact load, attenuate with the distance to the impact point, and decrease with soil elastic modulus increasing, while they are not obviously influenced by soil density variation. These conclusions have important significance for further study on the environment vibration.
Starting Page	5001
Ending Page	5004
File Size	327997
Page Count	4
File Format	PDF
ISBN	9781424477371
e-ISBN	9781424477395
DOI	10.1109/MACE.2010.5536111
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Railway engineering Vibration Ground Vibration measurement Automotive engineering Vehicles FEM Impact load Test Soil Rail transportation Vibration control Acceleration Civil engineering Testing
Content Type	Text
Resource Type	Article

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