Conference Proceedings
Vl Australian Tunnelling Conference: Bore or Blast, Melbourne
Conference Proceedings
Vl Australian Tunnelling Conference: Bore or Blast, Melbourne
Rogers Pass Tunnel - Bore and Blast
The 14.7 km Mt. MacDonald Tunnel beneath Rogers Pass in Canada used both drill-and-blast and machine boring methods._x000D_
A unique ventilation system provides for diesel operations. The design featured minimum construction support and an unrei.nforced poured concrete lining. The west heading was excavated in a single-stage drill-and-blast operation. The east heading used a TBM top heading with a drill-and-blast keyhole bench. The choice of methods was controlled by varying geology, with up to 1,700 m rock cover. Construction performance and progress are evaluated.
A unique ventilation system provides for diesel operations. The design featured minimum construction support and an unrei.nforced poured concrete lining. The west heading was excavated in a single-stage drill-and-blast operation. The east heading used a TBM top heading with a drill-and-blast keyhole bench. The choice of methods was controlled by varying geology, with up to 1,700 m rock cover. Construction performance and progress are evaluated.
Contributor(s):
T R Kuesel, W H Hansmire
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- Published: 1987
- PDF Size: 0.888 Mb.
- Unique ID: P198701048