Vibration Isolation of Wave Barriers Constructed Near a Shallow Tunnel

저심도 터널과 인접한 방진벽의 지반진동 저감효과

  • Received : 2015.07.27
  • Accepted : 2015.11.12
  • Published : 2015.12.31


This paper presents an assessment method of the ground vibration level with a combination of measured data and an analytic method. The basic concept of the method is similar to that in FRA(Federal Railway Administration) manual for detailed vibration analyses. However, going into detail, the assessment method was modified for a feasible evaluation of the vibration reduction effects of diverse types of wave barriers. The force density was evaluated in a vehicle-track interaction analysis and the transfer mobility of vibration was analyzed through a 2-D ground vibration analysis. The calculated 2-D transfer mobility was corrected to incorporate transfer characteristics of actual ground vibration by comparing the previously measured data and analysis results. Nine types of vibration reduction effects of wave barriers were analyzed on a shallow tunnel section of an urban railway where numerous civil complaints had actually been filed.


Ground vibration;Shallow tunnel;Wave barrier;Force density;Transfer mobility


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Grant : 레일방식 초고속철도 핵심요소기술 개발