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http://dx.doi.org/10.9711/KTAJ.2014.16.4.361

Prediction of fault zone ahead of tunnel face using x-Rs control chart analysis for crown settlement  

Yun, Hyun-Seok (Chungbuk National University, Dept. of Earth and Environmental Sciences)
Seo, Yong-Seok (Chungbuk National University, Dept. of Earth and Environmental Sciences)
Kim, Kwang-Yeom (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.16, no.4, 2014 , pp. 361-372 More about this Journal
Abstract
A measurement of tunnel displacement plays an important role for stability analysis and prediction of possible fault zone ahead of tunnel face. In this study, we evaluated characteristics of tunnel behaviour due to the existence and orientation of fault zone based on 3-dimensional finite element numerical analysis. The crown settlement representing tunnel behaviour is acquired at 5 m away from tunnel face in combination with x-Rs control chart analysis based on statistics for trend line and L/C (longitudinal/crown displacement) ratio in order to propose risk management method for fault zone. As a result, x-Rs control chart analysis can enable to predict fault zone in terms of existence and orientation in tunnelling.
Keywords
x-Rs control chart; Crown settlement; Prediction of fault zone; 3-D finite element numerical analysis;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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