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http://dx.doi.org/10.9711/KTAJ.2011.13.6.519

An experimental study on screw conveyor system of EPB shield TBM  

Kim, Sang-Hwan (호서대학교 토목공학과)
Kim, Jin-Dae (호서대학교 토목공학과)
Park, Inn-Joon (한서대학교 토목공학과)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.13, no.6, 2011 , pp. 519-530 More about this Journal
Abstract
The screw conveyor system installed in EPB Shield TBM chamber was manufactured in small scale for pilot test to investigate the tunnel muck hauling system that could control the earth pressure and support face thrust force. In this experimental study, there were three different test conditions that include screw angles, screw pitch, and screw RPM. Through analysis on test results based on the muck hauling amount per unit time from screw conveyor, the optimum conditions of screw conveyor were proposed to be efficiently performed by the muck processing system. Finally, this study provided the meaningful results such as optimum screw angle, screw RPM, and screw pitch for anti-reverse flow of muck hauling.
Keywords
Screw conveyor; screw angle; screw RPM; screw pitch; tunnel muck hauling system; EPB;
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