Name of Equipment:

Horizontal Raise Borer (HRB)

Shaft Diameter:

4,5 meters

Purpose:

Complex is used for creating horizontal under cuts and travel way tunnels in a fast and cost-effective manner where access is available on both ends

Benefits:

• No blast materials used
• Continuous production process
• Strong circular structure of the tunnel
• The Complex is smaller and such easier to transport
• More cost effective than a TBM
• Less support needed than conventional drill and blast tunnels
• Reaming advance of 4,5 meter per day
• Hard rock drilling application