Chemical Excavation Methods

Rock Tunnels

Task / DescriptionSlow  Ave  Fast   Units
 Excavation, non explosive chemical method, cycle time8.0 6.0 5.5  mins
 Excavation, non explosive chemical method, Class I Granite0.3 0.9 1.2  m3/cycle
 Excavation, non explosive chemical method, Class II Granite2.0 2.6 2.9  m3/cycle
 Excavation, non explosive chemical method, Class III Granite1.2 1.4 1.8  m3/cycle

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