Wilpinjong Coal Mine - Mudgee NSW Wilpinjong Coal Mine - Mudgee NSW Wilpinjong Coal Mine - Mudgee NSW Wilpinjong Coal Mine - Mudgee NSW

Wilpinjong Coal Mine - Mudgee NSW

Project featuring the VSoL Panel System.

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General Information

Wilpinjong Coal Project is the design, development and operation of an open cut coal project about forty-five minutes north of Mudgee in the Central Tablelands of NSW. Wilpinjong Coal Pty Limited, a wholly owned subsidiary of Excel Coal Limited,  developed the open cut coal project and related infrastructure. The head contract for the design, development and initial mine operation was awarded to Thiess Pty Ltd.

The project involved the construction of civil infrastructure and process plant required for development and operation of the open cut coal project.  This infrastructure and plant included access road, mine roads, rail loop as well as the main colliery area, including the construction of a Reinforced Earth™ wall dump structure.

The dump structure was constructed using the VsoL Retained Earth™ system, comprising reinforced concrete facing panels, galvanised steel reinforcing mesh, connection pins and selected backfill.  This dump structure was designed to carry loads from 250tonne dump trucks over a 20-year life.

Wilpinjong Coal Mine - Mudgee NSW

Retaining Solutions scope included: installation of unreinforced concrete levelling pad; VSoL panels; reinforcing mesh; geotextile; connector pins; conditioning cartage, placement, spreading & compaction of imported select backfill won from site. Retaining Solutions also installed the gravel encapsulated chimney drain at the rear of the reinforced fill zone. Dump slab and associated works, batter stabilisation and erosion control was carried out by Thiess Contractors, while Retaining Solutions installed the concrete dish drains on each wing wall. Retaining Solutions was then engaged for a further 6 months to carry out the trenching, pipeline & backfilling works for culverts, tailings, stormwater, freshwater & electrical communications throughout the mine. This contract involved supervision and plant wet-hire (excavator & bobcats).

Retaining Solutions received a “Health, Safety & Environmental Award” for overall excellence in performing their scope of works to schedule and implementing and maintaining an HSW System ensuring Zero Harm.

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Project Specs

  • Application - Dump Structure
  • Product - PSoL Panel System
  • Finish - Vertical Ribbed
  • Area - 695m2
  • Max. Height - 14.5m
  • Length - 76m
  • Loadings - CAT 773B (250 tonnes)
  • Design life - 20 years
  • Owner - Excel Coal Limited
  • Client - Thiess Pty Ltd
  • Construction - 2 months

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