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http://dx.doi.org/10.9711/KTAJ.2019.21.1.155

A comparative study on the stability evaluation of double deck tunnel in terms of excavation  

Jang, Namju (Geotechnical Department, Sambo Engineering Co., Ltd.)
Gang, Han-gil (Geotechnical Department, Sambo Engineering Co., Ltd.)
Kim, Kihwan (Geotechnical Department, Sambo Engineering Co., Ltd.)
Choi, Chang-rim (Geotechnical Department, Sambo Engineering Co., Ltd.)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.21, no.1, 2019 , pp. 155-166 More about this Journal
Abstract
It is necessary to construct underground in the metropolis. Road traffic has reached saturation point. The city has several underground road construction projects. In abroad, double deck tunnels are planned and constructed. It is attained a high level of underground development technology. In case the double deck tunnel (2 lane) is planed instead of the bidirectional tunnel (2 lane), excavation area is similar. But tunnel width is decreased. The reduced width can cut cost for the tunnel reinforcement. This study evaluates the stability of excavation on double deck tunnel. By the assessment of the strength-stress ratio and strength reduction method, quantitative analysis is conducted between double deck tunnel and the bidirectional tunnel.
Keywords
Double deck tunnel; Large tunnel; Strength stress ratio; Strength reduction method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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