›› 2007, Vol. 28 ›› Issue (9): 1817-1822.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental results and numerical predictions of ground vibration induced by high-speed train running on Qin-Shen Railway

GAO Guang-yun1, LI Zhi-yi1,2, FENG Shi-jin1, SUN Yu-ming3   

  1. 1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092，China; 2. Central Research Institute of Building and Construction, MCC Group, Beijing 100088, China; 3. Department of Civil Engineering and Architecture, Shanghai Institute of Technology, Shanghai 200235, China
  • Received:2005-10-28 Online:2007-09-10 Published:2013-10-15

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Abstract: Qin-Shen Railway is the first special passenger traffic line in China. In 2002, the Ministry of Railways organized the second homologation test. The authors performed the field vibration measurements at various distances from the track. Firstly, the field measured vertical accelerations are analyzed. The attention is paid on the effect of train organization and train speed on the ground vibration. Secondly, the track is modeled as a beam on an elastic foundation; the vibration model of moving train-track-ground is constructed. Based on the theory of thin layered method (TLM), the quadratic shape function TLM is derived. The Green function of a layered half-space is obtained. At last, the ground vibration from the track is analyzed and the result is validated by means of in-situ vibration measurements. The results show that the acceleration spectrum has a maximum at the fundamental axle passage frequency. Vibration amplification is not appeared because the trains speed far less than the Ralyeigh wave velocity of the ground. The vibration acceleration is proportion to the wheel load.

Key words: ground vibration, Qin-Shen Railway, thin layered method (TLM), layered ground, Green function

CLC Number: 

  • TU 435
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