Wilshaw provides design and drafting for Oyu Tolgoi ventilation shafts

Wilshaw provides design and drafting for Oyu Tolgoi ventilation shafts

RUC Cementation Mining engaged Wilshaw to provide design and drafting services for ventilation shafts for its Oyu Tolgoi mine in Mongolia.

Oyu Tolgoi, in the South Gobi region of Mongolia, is one of the largest known copper and gold deposits in the world. It is also one of the most modern, safe and sustainable operations in the world. When the underground is complete, it will be the world’s third largest copper mine.

Challenges and solutions

As the project moved towards its punch-listing and commissioning phase, to address the numerous technical queries and requests for additional design work, we mobilised one of our engineers to site to assist and direct workflow.

Wilshaw provided design and detail drawings for the mine’s Ventilation Shaft 3 (10m × 1170m) and Ventilation Shaft 4 (11m × 1220m), including:

  • Headframes (approx. 800 tonne of steel each), including a kibble tipping system (including design of hydraulic tipping chutes), fixed mullock chutes and mullock bin
  • Sinking stages (approx. 120 tonne of steel each), supported by 4-off 48mm diameter stage ropes, doubled-down. Each stage was configured with four kibble wells, with two of the kibble wells sized for Jumbos, 4-off muckers nested in stage, and four fixed decks with retractable floating deck. Design of hydraulic systems for stage stabilisers and floating deck doors.
  • Shaft collar steelwork and doors, and sub-brace steelwork and doors, with hydraulic systems to open and close doors
  • Stage rope wheels for mounting in the headframe and on the stage, as well as kibble rope sheave wheels
  • Production kibbles (8 tonne and 10 tonne payloads), concrete kibbles, drill kibbles, pipe-carrying kibbles and service cages
  • Crosshead
  • Winder buildings and foundations
  • Ductwork for shaft ventilation

For more information about our design and drafting services, call +61 8 9479 0800 or email info@wilshaw.com.au.