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Stability Analysis of Highway Tunnel and Railway Tunnel According to Section Shape  

Kim, Jae-Kyoung ((주)경동기술공사 지반공학부)
Lee, Bum-Jun (서울시립대학교 토목공학과)
Lee, Song (서울시립대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.13, no.4, 2009 , pp. 107-115 More about this Journal
Abstract
The number of railway tunnel design is increasing recently compare to a great number of highway tunnel design which had increased with a lot of highway construction in the 70's and 80's. Therefore, there is more or less difference of time between highway tunnel and railway tunnel. In this paper, numerical analysis on two kinds of tunnels, such as two-forked road highway ventilation tunnel and double track railway tunnel with 4.3m of center line, in cases of with support materials condition and without support materials condition were conducted. Finally, stability of two kinds of tunnels were compared and analyzed through comparing of principal stresses and deviator stresses in the near base rock of tunnels using results of numerical analysis.
Keywords
Highway tunnel; Railway tunnel; Stability; Standard section; Standard support pattern; Deviator stress ratio;
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