• 제목/요약/키워드: tunnelling

검색결과 2,003건 처리시간 0.023초

Application of Norwegian Method of Tunnelling (NMT) Principles to bypass landslides in mountainous terrain

  • Bhasin, Rajinder;Aarset, Arnstein
    • 자연, 터널 그리고 지하공간
    • /
    • 제22권1호
    • /
    • pp.26-35
    • /
    • 2020
  • Tunnelling to bypass major landslide areas is considered as a good and long-term environmentally friendly solution to reduce an existing hazard. In Norway, hundreds of kilometres of tunnels have been constructed in areas prone to landslides and snow avalanches. Although tunnelling is considered as an expensive mitigation strategy for bypassing landslides, analysis indicate that in some cases the cost of building a tunnel can be repaid by savings in driving costs (fuel) alone over a period of 5-10 years due to reduced driving distances. The other benefits of constructing tunnels in landslide areas include savings in time and increased safety. The Norwegian Method of Tunnelling (NMT) is considered safe, efficient and cost effective compared to other tunnelling techniques. Some aspects of NMT, which are considered safe and cost efficient, are presented. The application of updated rock support techniques, including reinforced ribs of shotctrete (RRS), which is a key component of the Norwegian Method of Tunnelling (NMT), is highlighted.

토사터널굴진시 지반거동에 대한 이론적 접근에 대한 연구 (Theoretical approach for ground behaviour during tunnelling in soils)

  • 김상환
    • 한국터널지하공간학회 논문집
    • /
    • 제5권4호
    • /
    • pp.301-312
    • /
    • 2003
  • 이 논문은 토사지반 (연약지반)에서의 터널굴진시 터널주변에 야기되는 응력과 간극수압에 대한 거동의 이론적 고찰에 대한 연구로써 터널 굴진시 터널의 안정성 예측을 위한 접근방법에 대하여 연구, 제시되었다. 안정성에 대한 이론적인 접근방법을 이해하기 위하여 배수 및 비배수조건에서의 터널막장의 거동에 대하여서도 고찰하였으며, 실질적으로 현장에서 계측하여 얻어진 자료를 기초로 터널의 안정성에 대한 이론적 접근방법의 적용사례를 연구하고 그 결과에 대하여서도 또한 분석 평가하였다.

  • PDF

HARD ROCK에서의 T.B.M 공법 적용사례 (A Case Study on the Application of T.B.M Tunnelling in Hard Rock)

  • 박용운;박홍조
    • 한국지반공학회:학술대회논문집
    • /
    • 한국지반공학회 1993년도 지하공간 건설기술에 관한 서울 심포지움 논문집
    • /
    • pp.103-118
    • /
    • 1993
  • The application of T.B.M tunnelling has been progressively increased since the first entrance into Korea in 1985 and especially, its higher performance and safety is widely proved as a generalized tunnelling in hardrock tunnel construction, comparing wi th conventional method. This case announcement will be much helpful for your general understanding of T.B.M tunnelling and the development of tunneling technology by introducing the brief methods and construction results from the actual application cases of T.B.M tunnelling in Ulsan Water Supply Tunnel Project, the longest tunnel in Korea under construction by YOU ONE. Co.

  • PDF