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ENPT
Case Studies

Mining: Lonmin Rowland Shaft

The Challenge

Completion of 4.5m diameter x 985m length at 90º shaft with ground hardness between 200 MPa and 250 MPa. There were a slight deviation of 350mm

Our Solution

Master Drilling addressed the following project challenges:

Work had to continue amid a six-month mine strike

Lading had to take place via the funky slide method – this is where rocks are loaded with a winch onto a belt and then carried over into a hopper in order to be transported out of the mine

The Result

The project was completed on budget, within stipulated time frames

100% safety record achieved

Three local community members formed part of its drilling crew

Measured scope

Project facts

Machine
Raise boring machine
Excavation depth (m)
985m
Diameter
4.5m diameter
Geology
Hard rock
Project Owner
Lonmin