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http://dx.doi.org/10.7782/JKSR.2013.16.1.047

An Experimental Study on Shield TBM Tunnel Face Stability in Soft Ground  

Kim, Yong-Man (General manager, POSCO E&C)
Lee, Sang-Duk (Department of Civil Engineering, Ajou University)
Choo, Seok-Yeon (General manager, POSCO E&C)
Koh, Sung-Yil (DANWOO E&C)
Publication Information
Journal of the Korean Society for Railway / v.16, no.1, 2013 , pp. 47-51 More about this Journal
Abstract
In this study, we carried out an experimental shield TBM excavation model test using a down-scale device in soft clay, to understand tunnel-face stability properties in relation to changes in slurry pressure. We performed five tests according to tunnel depth (0.5D, 0.75D, 1.0D, 1.25D, 1.5D), and compared theoretical tunnel-face pressure with model test results. The range in theoretical tunnel-face slurry pressure ($P_{min}{\leq}P_{slurry\;pressure}{\leq}P_{max}$), which is determined by earth pressure and water level, was very similar to the model test result. This result was due to the more isotropic condition of the soft clay ground, than of rocky ground.
Keywords
Shield TBM model test; Slurry shield TBM; Tunnel face slurry pressure;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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