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A study on the structural safety of middle slab in double deck tunnel under live loads

활하중에 대한 복층터널 슬래브의 구조적 안전성에 관한 연구

  • Received : 2020.02.03
  • Accepted : 2020.03.24
  • Published : 2020.03.31

Abstract

The purpose of this study is to analyze in advance the problems and improvements that may occur during the construction of intermediate slabs and the loading of intermediate slabs through the preliminary structural safety evaluation of intermediate slabs for Test bed structures in deep depth tunnels. The Test bed construction can verify and confirm the results of the design and construction technology development of large depth double deck tunnel through the process, and can also be used as a learning site for engineers and the general public to speed up the time of underground space development. There will be an opportunity to do this. In particular, the design load of middle slab built inside the circular deep-depth double-sided tunnel cross-section varies depending on the construction method and the construction equipment load used. Class 3 truck load of KL-510 assumed to be common load to upper and middle slab during loading and installation is loaded on upper and lower slab with different working position for each load combination Analyzed.

Acknowledgement

Grant : 대심도 복층터널 설계 및 시공기술개발

Supported by : 국토교통과학기술진흥원

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