• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 19 Issue 6
Dec.  2006
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Article Contents
CAO Xiaojun, ZHANG Jichun, LU Helin, GUO Jianqun. Numerical Simulation of Ground Vibration Effects in Shallow Tunneling Blasting[J]. Journal of Southwest Jiaotong University, 2006, 19(6): 680-684.
Citation: CAO Xiaojun, ZHANG Jichun, LU Helin, GUO Jianqun. Numerical Simulation of Ground Vibration Effects in Shallow Tunneling Blasting[J]. Journal of Southwest Jiaotong University, 2006, 19(6): 680-684.

Numerical Simulation of Ground Vibration Effects in Shallow Tunneling Blasting

  • Received Date: 18 Jan 2006
  • Publish Date: 25 Dec 2006
  • By taking a shallow tunnel on the Yuhuai railway as the research object,ground vibration induced by blasting was simulated numerically using a dynamic finite element method.In the established numerical model,the ground and excavating boundaries are regarded as free ones,others as fixed ones,and a measured vibration wave is taken as the import load in numerical calculations.The result shows that the simulated wave of ground vibration is close to the measured wave in shape,and the attenuation laws of vibration velocity with time and distance accords with measured results.A further comparison between the characteristic parameters of simulated and measured waves shows that the simulated wave of ground vibration can reflect the characteristics of particle vibration,and the average values of relative errors of amplitude,main vibration frequency and duration are 9.14%,(12.85%) and 17.57% respectively.

     

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