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Showing: 1 to 4 of 4 matches for "Observations on drag tool excavation and the consequent performance of. roadheaders in strong rock"  Page   1 TITLE Observations on Drag Tool Excavation and the Consequent Performance of Roadheaders in Strong Rock  SUMMARY Page 1. Observations on drag tool excavation and the consequent performance of roadheaders in strong rock HE Speight 1 (Member) ABSTRACT ... PUBLISHED 1997 TITLE Fragmentation Method: A Ground Control Tool  SUMMARY ... 339-343. Speight, HE (1997). “Observations on drag tool excavation and the consequent performance of roadheaders in strong rock.” In Proceedings of ... AUTHOR Girard-Dwyer, J. ; Johnson, J. ; Whyatt, J. ; White, B. PUBLISHED 2003 TITLE Evaluation Of The Indirect Measures Of Rock Brittleness And Fracture Toughness In Rock Cutting  SUMMARY ... is the governing parameter in mechanical excavation, which determines the performance of the ... forms of major chipping due to drag tool cutting and ... AUTHOR Tiryaki, B. PUBLISHED 2006 TITLE Novel and Innovative Mining Methods  SUMMARY ... is pro- vided for each rapid excavation method described ... a cyclical one with rapid fluctuations in tool forces ... Roadheaders use drag and point-attack bits almost ... AUTHOR Chamberlain, Peter G. PUBLISHED 2008 Showing: 1 to 4 of 4 matches for "Observations on drag tool excavation and the consequent performance of. roadheaders in strong rock"  Page   1 Search Again