Analysis of Collapse Shape and Cause in the Highway Tunnel

Nag-Young Kim; Sung-Hwan Kim; Hyung-Sik Chung

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2000 Vol.2, Issue 3 Preview Page Next Page

Analysis of Collapse Shape and Cause in the Highway Tunnel 고속도로터널의 붕락유형과 원인 분석

31 December 2000. pp. 13-23

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Abstract

The collapse shapes and causes of tunnel in the highway were analyzed and reinforced methods of tunnel were investigated in the paper. Collapse shapes of tunnel are divided into three types such as subsurface failure, small scale wedge failure and slickenside strata failure. These three shapes consist of 35%, 50%, and 15%, respectively. The 85% of collapse was located near the entrance and exit of tunnel. The 15% was located at the intersection of emergency laybys. When tunnel collapses are analyzed by the failure concept, sliding failure amounts to more than 83%.

Keywords

Collapse shapes of tunnel

Emergency laybys

Failure concept

본 논문에서는 고속도로터널의 붕락형태와 원인분석, 보강방법에 대하여 다루었다. 고속도로터널의 붕락형태를 분석해 보면 3가지 유형으로 분류된다. 지반풍화로 인해 터널붕락이 지표면까지 함몰된 경우 35%, 불리한 암반절리로 인한 터널내 국부적인 쐐기형 암반블럭 붕락의 경우 50%, 터널굴진방향과 미끄럼면의 교차로 인해 터널내 침하가 발생한 경우 15%의 비율로 조사되었고 터널붕락이 발생된 위치는 입출구 40m 이내와 입출구와 인접한 계곡부에서 85%, 비상주차대과 본선접속부에서 15% 발생되었다. 고속도로터널에서 발생한 붕락을 파괴개념으로 분석하면 활동파괴가 83%이상을 차지하는 것으로 분석되었다.

키워드

터널붕락형상

비상주차대

파괴개념

References

1. 김성환, 김낙영(2000), "고속도로터널 현황", 터널기술, Vol. 2, No.1, 2000, pp 6-14.

2. Wolfard Leichnitz(1990), "Analysis of collapse on tunnel construction sites on the new lines of the german federal railway", Tunnelling and Underground Technology. 1990, Vol 5, No3, pp 199-203.

3. Chambon, Pierre and Corte, Jean- Francois(1994), "Shallow Tunnels in Cohe- sionless Soil :Stability of Tunnel Face", ASCE Journal of Geotechnical Engineering, Vol. 120. No 7., pp

Information

Publisher :Korean Tunneling and Underground Space Association
Publisher(Ko) :한국터널지하공간학회
Journal Title :Journal of Korean Tunnelling and Underground Space Association
Journal Title(Ko) :한국터널지하공간학회 논문집
Volume : 2
No :3
Pages :13-23

Journal of Korean Tunnelling and Underground Space Association ISSN:2233-8292(Print) 2287-4747(Online) 한국터널지하공간학회 논문집

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