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A Study on Convergency of Tunnel Displacement using Control Chart Method  

Yim, Sung-Bin (Department of Earth & Environmental Sciences, Chungbuk National University)
Kim, Sung-Kwon (Department of Earth & Environmental Sciences, Chungbuk National University)
Seo, Yong-Seok (Department of Earth & Environmental Sciences, Chungbuk National University)
Park, Si-Hyun (Korea Infrastructure Safety & Technology Corporation, Underground Facility Dept.)
Publication Information
The Journal of Engineering Geology / v.17, no.2, 2007 , pp. 197-204 More about this Journal
Abstract
Tunnel deformation happens by excavation. After installation of support, tunnel is gradually stabilized over time. Effect of excavation on tunnel behavior decreases as increase of distance from face. If the time that the displacement converges by tunnel stabilization is estimated, processes after stabilization can be advanced and economic loss can be reduced. In this study, the distance of displacement convergent point from face in the tunnel constructed on sedimentary rock is estimated using control chart method. As the results of analysis using a control of chart, displacements in a sedimentary rock tunnel are converged within 100 m from each tunnel face.
Keywords
control chart method; x-MR control chart; control limit; displacement convergence;
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