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http://dx.doi.org/10.12814/jkgss.2015.14.2.081

Numerical Analysis of Rock Pillar in Tunnel Diverging Area  

Kang, Jae-Gi (Deputy General Manager, Hong-Ik Engineering & Consultants Co. Ltd.)
Lee, Choul-Kyu (Dept. of Civil Engineering, Daejin University)
Lee, Kang-Il (Dept. of Civil Engineering, Daejin University)
Publication Information
Journal of the Korean Geosynthetics Society / v.14, no.2, 2015 , pp. 81-88 More about this Journal
Abstract
This study assessed the behavior of rock pillar in tunnel diverging area by using a three dimensional numerical analysis. Based on parameters affecting the behavior of rock pillar, this study evaluated different safety factors according to pillar width, depth and rock conditions. It turned out that as the rock pillar width increases, the change curve of safety factors in accordance with depth and rock conditions shows more of the nonlinear behavior. By the assessment of the minimum safety factor, a safety factor chart on the behavior of rock pillar in tunnel diverging area was suggested.
Keywords
Tunnel diverging area; Rock pillar; Numerical Analysis; Safety factor chart;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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