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http://dx.doi.org/10.9711/KTAJ.2013.15.3.225

Experimental evaluation of the effects of cutting ring shape on cutter acting forces in a hard rock  

Chang, Soo-Ho (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Choi, Soon-Wook (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Park, Young-Taek (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Lee, Gyu-Phil (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Bae, Gyu-Jin (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.15, no.3, 2013 , pp. 225-235 More about this Journal
Abstract
Cutter forces acting on a disc cutter in TBM are the key parameters for TBM design and its performance prediction. This study aimed to experimentally evaluate cutter forces with different ring shapes in a hard rock. The stiffness of a cutter ring was indirectly estimated from a series of full-scale linear cutting tests. From the experiments, it was verified that the rolling stress acting on a V-shape disc cutter was much higher than on a CCS disc cutter even though the penetration depth by a V-shape disc cutter could be increased in the same cutting condition. Finally, it is suggested that a prediction model considering the shape parameters of a disc cutter should be used for its better prediction.
Keywords
Disc cutter; TBM; Cutter ring; Cutter acting force; CCS; V shape;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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