The application of the q tunnelling quality index - Geohart Consultants

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Scaling 32% Block 50% Wedge Figure 6: Shape of Falls of Ground Cross Cut 6% Boxhole 11% Traveling Way 13% Raise 24% Winze 6% Figure 7: Location of Falls of Ground Drive 40% 34
Figure 8: Origin of Falls of Ground Figure 9: Rock Type Involved in Falls of Ground 35
Page 1 and 2: THE APPLICATION OF THE Q TUNNELLING
Page 3 and 4: 1 INTRODUCTION The current mining i
Page 5 and 6: 2 MINE LOCATION AND GEOLOGICAL SETT
Page 7 and 8: The most important platinum group e
Page 9 and 10: oundaries of the fall of ground: jo
Page 11 and 12: material 7 . Such a situation may r
Page 13 and 14: COMRO 14 , pages 88 and 89. The for
Page 15 and 16: added to the database 19, 20, 21 .
Page 17 and 18: J r J a J w SRF is the joint roughn
Page 19 and 20: tunnels at Impala Platinum Mine. Th
Page 21 and 22: 4.1.1 Estimating the RQD from Scan
Page 23 and 24: Excavation Span (m) 10 9 8 7 6 5 4
Page 25 and 26: In order to estimate where the “n
Page 27 and 28: The work in implementing the use of
Page 29 and 30: 6 ACKNOWLEDGEMENTS The authors woul
Page 31 and 32: 17. Laubscher DH and Jakubec J (200
Page 33: FREQUENCY 12 10 8 6 4 2 0 100% 80%
Page 37 and 38: grouted rebars will be used. If the

The application of the q tunnelling quality index - Geohart Consultants

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