Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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A Study on the Improvement of Temporary Ventilation of long tunnel Using the Field Measurement data

현장 실측을 통한 장대터널 공사중 환기 문제점 연구

  • Hong, Chang-Soo (Inst. of Construction Technology, Technical Research Center, Samsung C&T Corporation) ;
  • Hwang, Dae-Jin (Inst. of Construction Technology, Technical Research Center, Samsung C&T Corporation) ;
  • Kang, Hyun-Wook (Building and Tunnel Technologies. Inc.)
  • 홍창수 (삼성건설 기술연구센터 기반기술연구소) ;
  • 황대진 (삼성건설 기술연구센터 기반기술연구소) ;
  • 강현욱 ((주)비엔텍아이엔씨)
  • Published : 2010.09.09
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Abstract

In tunnelling, temporary ventilation is very important factor in the safety of worker and the work efficiency which is affected by visibility. There are a lot of problems in the recent tunnel construction, because the longer the tunnel, the more the present design doesn't satisfy the allowable standard about dust and air pollution. Especially, In case the length of tunnel is more than 1,000m, the ventilation efficiency tends to decrease. In this study, the field measurement of the degree of contamination was performed near the face of tunnel. Based on the results obtained, the main factors of problem in temporary ventilation are the difference of temperature between outside and inside, the rate of leakage of ventilation duct and the dust and so on. It maybe helpful to the solution of problems, and also the accurate ventilation estimate.

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