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http://dx.doi.org/10.9711/KTAJ.2010.12.6.463

New approach on prediction of fault zone ahead of tunnel face by using $x-R_s$ control chart for RMR parameters  

Yim, Sung-Bin (한국건설기술연구원 지반연구실)
Kim, Kwang-Yeom (한국건설기술연구원 지반연구실)
Kim, Chang-Yong (한국건설기술연구원 지반연구실)
Seo, Yong-Seok (충북대학교 지구환경과학과)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.12, no.6, 2010 , pp. 463-473 More about this Journal
Abstract
A new approach for prediction of a fault zone ahead of tunnel face by using statistical control charts is suggested and applied to the construction site. $x-R_s$ control charts of RMR parameters were investigated as approaching and passing through fault zone. The abnormal signal from the control charts was observed and analyzed based on statistical criteria. Fault zones in the application area were predicted in advance using this method and it was verified by comparing with observation data like horizontal boring and face mapping.
Keywords
Statistical control chart method; $x-R_s$; control chart; fault zone; RMR;
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Times Cited By KSCI : 2  (Citation Analysis)
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