›› 2013, Vol. 34 ›› Issue (S1): 313-317.

• Geotechnical Engineering • Previous Articles     Next Articles

Analysis of ground vibration of moving train by using Hyperbola-Logistic model

CHEN Gong-qi1,2, GAO Guang-yun1,2, JIANG Jian-ping3   

  1. 1.Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 3. College of Ocean Environment and Engineering, Shanghai Maritime University, Shanghai 200135, China
  • Received:2012-09-27 Online:2013-08-30 Published:2014-06-09

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Abstract: The ground vibration attenuation consists of geometric attenuation in the form of power function and damping attenuation in the form of exponential function. The Hyperbola-Logistic model is proposed based on the two characteristics. Through case study, it is revealed that the Hyperbola-Logistic model can not only be used to predict ground displacement and attenuation of velocity, acceleration, and vibration level, but also be used to predict ground vibration caused by train passing the viaduct section, embankment section and underground section. The Hyperbola-Logistic model has a better fitting precision, whose correlation coefficient R is above 0.95 and determination coefficient R2 is above 0.90, which demonstrates its credibility to predict ground vibration attenuation. This model shows its advantage both in quantitative value and distribution trends after comparison, so as to provide it a better way to predict ground vibration caused by the train.

Key words: Hyperbola-Logistic model, ground vibration, vibration attenuation, moving train

CLC Number: 

  • TU113.5
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