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http://dx.doi.org/10.9711/KTAJ.2015.17.2.167

Safe tunneling method using numerical modeling of rock blocks in long tunnels  

Hwang, Jae-Yun (College of Engineering. Kyungnam University)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.17, no.2, 2015 , pp. 167-174 More about this Journal
Abstract
Since about 70 percent of the territory is mountainous, more tunnels are constructed in Korea for maximizing the development efficiency. With the increasing number of tunnel construction, safe construction in tunnels has been emerged as the utmost important subject. Recently, the number of long tunnel construction is steeply increased because of the request for high speed and straight road. In this study, a safe tunneling method using numerical modeling of rock blocks in long tunnels is proposed, and then applied to the long tunnel based on real discontinuity information observed in situ. It is possible to detect key blocks all along the tunnel exactly by using the numerical analysis program developed for the safe tunneling method using numerical modeling of rock blocks. This computer simulation method with user-friendly interfaces can calculate not only the stability of rock blocks but also the design of supplementary supports.
Keywords
Safe tunneling method; Long tunnel; Rock blocks; Numerical modeling; Computer simulation method;
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