A study on the effect of ground vibration induced by vibrohammer and RCD on adjacent subway tunel

This paper presents the effect of ground vibration induced by vibrohammer and RCD on adjancent subway tunnel performance using FDM program. Firstly, the stability criteria for structures near vibration source were proposed according to existing data, then peak particle velocity around tunnel was estimated based on detailed information of vibrohammer and existing formula for dynamic loads through numerical analysis. The peak particle velocity induced by RCD bit rotation was also estimated using surveyed data and formula. Consequently, displacement and stress responses were obtained at crown, shoulder and spring line and compared with the criteria to check stability of tunnel.

keywords: 바이브로 해머, RCD, 최대입자속도, 유한차분 해석, Vibrohammer, RCD, peak particle velocity, finite-difference analysis, Vibrohammer, RCD, peak particle velocity, finite-difference analysis

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Article Contents

Vol.5 No.2

A study on the effect of ground vibration induced by vibrohammer and RCD on adjacent subway tunel

Abstract

(사)한국터널지하공간학회