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http://dx.doi.org/10.9711/KTAJ.2020.22.2.171

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

Kim, Tae Kyun (Hong G Co., Ltd.)
Kim, Se Kwon (Hong G Co., Ltd.)
Kim, Hyun Jun (Hong G Co., Ltd.)
Kim, Chang Young (Future Infrastructure Research Center, Korea Institute of Civil Engineering and Building Technology)
Yoo, Wan Kyu (Korea Institute of Civil Engineering and Building Technology)
Hwang, Sung-Pil (Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.22, no.2, 2020 , pp. 171-183 More about this Journal
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.
Keywords
Double deck tunnel; Middle slab; Test bed; Construction equipment load; Common load;
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