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TBM Penetration Rate and Cutter-head Torque Power exhibited pronounced changes that also conformed to the corresponding water pressure test results. Employing the model, the location of individual water conduits were determined and grouted with an acceptable degree of success.

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This page is a summary of: Delineating subterranean water conduits using hydraulic testing and machine performance parameters in TBM tunnel post-grouting, International Journal of Rock Mechanics and Mining Sciences, September 2014, Elsevier,
DOI: 10.1016/j.ijrmms.2014.04.013.
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