터널과지하공간 (Tunnel and Underground Space)

  • 제23권5호
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  • Pages.337-346
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  • 2013
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  • 1225-1275(pISSN)
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  • 2287-1748(eISSN)
한국암반공학회 (Korean Society for Rock Mechanics and Rock Engineering)
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풍화암반 저심도 터널 굴착 중 발생한 지표침하의 특성

Characteristics of Subsidence above a Shallow Tunnel Excavated in Weathered Rock Mass

  • Kim, Chee-Hwan (Department of Civil and Environmental Engineering, Woosuk University)
  • 투고 : 2013.09.16
  • 심사 : 2013.10.14
  • 발행 : 2013.10.31
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초록

풍화암반에 저심도 터널을 굴착하였을 때 발생하는 지표침하의 특성을 분석하였다. 터널은 아파트 등 건물하부를 지나고 터널까지의 최저심도는 약 11 m, 터널 폭도 약 11 m이다. 건물에 인접한 터널 180 m 구간에 지표침하핀을 23개 설치하고 약 2년의 공사기간 동안 지표침하를 계측하였다. 이와 같이 계측한 지표침하량을 최적화하여 3차원 지표침하면을 모사하였고 지표침하폭 매개변수(K)와 터널단위길이당 횡단면침하체적(Vs)의 변화를 분석하였다.

The characteristics of subsidence above a shallow tunnel excavated in weathered rock mass is analyzed. The tunnel is excavated minimum about 11m beneath some buildings and the width of the tunnel is 11m, too. Subsidence pins are installed at 23 locations on surface along the tunnel, 180m long, adjacent to the buildings. Subsidences are measured for about 2 years and they are optimized to analyze three dimensional deformed ground surface, trough width parameter K and sectional volume loss of unit tunnel length Vs of the surface deformation profile.

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피인용 문헌

  1. Case Study of a Shallow Tunnelling Through Complex Strata of Sand-Gravel and Rock Mass vol.25, pp.3, 2015, https://doi.org/10.7474/TUS.2015.25.3.244