Sales (204) 262-5922

New Afton Raises

New Afton Raises - 

Robotic Shotcreting

CUSTOMER: New Gold

LOCATION: Kamloops, British Columbia

PROJECT: To line two separate vertical raises, each 3.5 m (12 ft) in diameter and two unique depths of 300 m (950 ft) and 420 m (1430 ft). (which held the record for the deepest raise lined to date in the world)

CHALLENGES: ŸImmense weight, (due to depth), of all the infrastructure on the support frame.

Portable systems were required to supply air and water.

A winch and cable rating that would accommodate the system.

Applying shotcrete 5 cm (2 in) thick uniformly and being able to record & view proof of application.

PROJECT PLAN: ŸEngineer a enhanced ‘structural frame’ above the raise culvert which would support the immense loads of the ‘raise robot’, hose, cable, and material delivery systems.

A multi-camera system to visually inspect and ensure delivery of the correct amount of shotcrete.

The Multicrete Raise Robot™ is a remotely controlled robotic assembly for the spraying of shotcrete; used in shafts and raises of subterranean excavations. This robotic unit is designed for use in mines and on large civil construction projects.

Standard Multicrete Raise Robot™ is designed for use in raises a minimum of 1.5 meters diameter up to a maximum of 5.5 meters diameter. Spring-loaded retractable arms stabilize the Multicrete Raise Robot™ and allow for undulations along the interior surface of the raise.

OPERATING PRINCIPLE:

The Multicrete Raise Robot™ is lowered by means of a heavy-duty incremental winching system. This system allows for variable speeds from 5 cm/minute up to 6 m / minute. During its descent, the RAISE ROBOT washes (hydro-blasts) the interior surfaces. On its return, the unit commences spraying shotcrete in a uniform single pass. The electric motor on the spray head allows for 360° non-stop rotation.

The Multicrete Raise Robot™ is used in conjunction with the AL 257 electric powered shotcrete machine mounted on a Multicrete Integral Predampener.  Predampened material is conveyed through 50 mm. diameter heavy duty hose for the remote application of shotcrete via the Multicrete Raise Robot™.

At surface level, technicians monitor the progress of the Multicrete Raise Robot™ via video display. This allows for the rate of application to be modified without personnel entering the raise.

SHIPMENT:

All the required equipment, spares and accessories can be compacted for shipment into a 20' sea container. The Multicrete Raise Robot™ collapses to just 1.8 meters in height, 2.7 meters in length and 1.8 meters in width for ease of transport.

    Multicrete™ is here to help

    We're ready to help you with your project. Send us your quote request or questions, and a representative will contact you shortly.

     Sales: (204) 262-5922

    Support You Can Count On!™