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http://dx.doi.org/10.9720/kseg.2016.3.403

Comparative Analysis of Fault Prediction with Horizontal and Longitudinal Displacements on Tunnel  

Yun, Hyun-Seok (Department of Earth and Environmental Sciences, Chungbuk National University)
Seo, Yong-Seok (Department of Earth and Environmental Sciences, Chungbuk National University)
Publication Information
The Journal of Engineering Geology / v.26, no.3, 2016 , pp. 403-411 More about this Journal
Abstract
A three-dimensional finite element analysis was conducted to analyze the predictable distances of a fault zone by using longitudinal displacement on tunnel face, trend line, L/C ratio, and C/C0 ratio at tunnel crown. The analysis used 28 numerical models with various fault attitudes. As a result, those faults that have drives with dip could be predicted earliest in L/C and C/C0 ratio analysis. And those faults that have drives against dip could be predicted earliest in L/C ratio and longitudinal displacement analysis. In addition, the fault zone ahead of tunnel was predicted in most models by using longitudinal displacement, trend line, L/C ratio, and C/C0 ratio. However, the longitudinal displacement among these methods may be most usefully predict a fault zone since it is displacements can be measured immediately after tunnel excavation.
Keywords
predictable distances of a fault zone; longitudinal displacement; trend line; L/C ratio; C/C0 ratio;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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