Journal of the Korean GEO-environmental Society (한국지반환경공학회 논문집)

Korean Geo-Environmental Society (한국지반환경공학회)
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Mechanical Behavior of Rib-reinforced Precast Cut-and-cover Tunnels by Large-sized Experiments

  • Gyuphil Lee (Department of Geotechnical Engineering Research, KOREA INSTITUTE of CIVIL ENGINEERING and BUILDING TECHNOLOGY)
  • Received : 2023.08.07
  • Accepted : 2023.08.28
  • Published : 2023.10.01
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Abstract

Wide tunnels,such as those with high filling, can suffer limited applicability and also reduced structural stability. Therefore, to improve these limitations of precast cut-and-cover tunnel segments, this study proposes rib reinforcement of the vaults of the precast segments. Large-sized experiments assess the effectiveness of the various rib-reinforced precast arch cut-and-cover tunnel structures, and compare them against otherwise similar non-rib-reinforced specimens. The results show that the rib-reinforced precast cut-and-cover segments are suitable for building wide tunnels with high filling.

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Acknowledgement

This work was supported by the Korea Institute of Construction and Transportation Technology Evaluation and Planning, under the Ministry of Construction and Transportation in Korea (No. 06-C19) and by a grant (07UrbanRenaissanceB03) from the High-Tech Urban Development Program funded by the Ministry of Construction & Transportation of the Korean Government. The authors gratefully acknowledge this support.

References

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