Shaft Lining

RIX’s tele-remote shotcrete shaft liner was designed in 2006 after two years of vigorous research and design. Six years on, computers and material technology have greatly improved. Equipped with many hours of service in real life mining conditions, our designers completely overhauled the module, including intrinsically-safe coal mine-certified upgrades.

RIX’s tele-remote shotcrete shaft liner offers increased levels of:

  • Safety
  • Quality assurance
  • Speed
  • Efficiency
  • Cost saving

Why Tele-remote shotcrete shaft lining?

The levels of safety and expense required to set-up stages and place personnel on unsupported ground in shafts are no longer required where tele-remote shotcrete linings design is an option.

Poor ground conditions and the need for further ground support such rock bolts and mesh reinforcement may eliminate this option, and steel linings, casings or pre-cast elements may be installed.

RIX’s tele-remote shotcrete shaft liner is operated from a control cabin on the surface and lowered down the shaft by way of a winching system.

Our rig is fully automated, so as the spray head applies the fibrecrete, the winch lowers the module in sync, allowing quality final linings.

Cameras and lighting are then used to monitor the spraying and shaft depths of up to 450m, and diameters from 1m to 6.5m are able to be sprayed with our system.

Our rig will film and record the pretreated shaft condition, which has the benefit of optimising the budget. We then wet down and clean the shaft with water via the spray head and commence spraying from top down, gradually building up layers of fibrecrete to the required design thickness, all filmed and recorded for clarification of quality and final client approval.

Centre: RIX‘s tele-remote shotcrete shaft liner spraying a 4.5m diameter, 330m deep raise bore vent shaft in a Coal Mine in central Queensland. Structural synthetic fibre-reinforced dry spray shotcrete was applied to the shaft walls up to 80mm thick with our in-house designed and built module and 360-degree spray head.

Left: Tele-remote shotcrete shaft liner is withdrawn after lining a 125m deep, 4.5m diameter underground ventilation shaft in Cobar, central NSW.

Right: Tele-remote shaft liner pictured, being transported into the mine entrance and subsequently 7km underground to the underground ventilation shaft location.