The Effects of the Wave Propagation Path of Ground Vibration Induced by the Subway Train on the Reduction of Vibration Level

지하철 주변 지반진동의 전파경로가 진동레벨 감쇠에 미치는 영향

  • 신한철 (서울특별시 상수도사업본부) ;
  • 조선규 (서울산업대학교 건설공학부) ;
  • 양신추 (한국철도기술연구원 궤도토목연구실) ;
  • 이종민 (서울산업대학교 철도전문대학원)
  • Published : 2009.10.30

Abstract

In this paper, Numerical analysis was conducted to study on the reduction of ground vibration level induced by subway train. The analytical results indicated that the soil properties were the predominant factor affecting the ground vibration when the tunnel was located in the soil layer. On the other hand, the rock properties were the predominant one when the tunnel was located in the rock layer. The effects of the angle between the vertical line of vibration source and the receive point on the reduction of vibration level were also evaluated. There were little difference in the reduction of vibration level when the receive point was located within $30^{\circ}$. The vibration level, however, rapidly decreased when the angle between the two points was larger than $40^{\circ}$.

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