Rig breaking down building structure at Wallerawang Power Station

Wallerawang Power Station Demolition

Location
Wallerawang, NSW
Client
Greenspot
Duration
24 months
Status
Completed 2023

Overview

Liberty Industrial was engaged as the principal contractor for the decommissioning of the existing coal- fired Wallerawang Power Station, New South Wales. The scope included the demolition of two 59m boiler units, two 177m tall stacks, precipitators, coal handling plant conveyors, auxiliary bay, removal of equipment from within the turbine hall, smaller buildings, workshops, stacker reclaimer, road reclaim hopper, live storage hopper, complete HAZMAT removal and civil works.

Challenges

  • Liberty Industrial faced various challenges due to the location and sensitive nature of the site. Several heritage structures located within and surrounding the site include an existing stack from the original power station, a stone viaduct that crosses Cox’s River and the Church of St John the Evangelist. These assets are required to be protected and kept intact for the full duration of the project.

Robust Solutions/Exceptional Outcomes

Robust solutions

  • The team overcame these challenges by engaging specialised consultants such as a Heritage Structural Engineer, to inspect and analyse the current conditions of the heritage structures; Environmental Consultants to assess and provide predictions for air blast and vibration limits during blast events; and Applied Science International’s (ASI) innovative 3D modeling software to analyse and model scenarios for the falling of the two stacks and the two boiler units. The latter is a critical risk strategy to ensure that no damage occurs to these existing assets.
  • Traffic Management was another challenge, with public road closures required for sections of the Castlereagh Highway and Main Street in Wallerawang during the three blast events. Our project team undertook continuous strategic planning with Greenspot, Transport for New South Wales and Lithgow City Council to provide a solution for the temporary road closures and prevented disruption to the access of these roads.

 

Exceptional outcomes

Liberty Industrial completed the project within a two-year timeframe and allowed the land to be returned to Greenspot and reused as an industrial park development.

Value Add

01

Demolition Simulation and Modelling

With exclusive license to demonstrate using Extreme Loading® for Structures (ELS) software developed by Applied Sciences International (ASI).

02

Decontamination and Industrial Cleaning

Designing engineered solutions for decontamination such as removal of asbestos, heavy metals, PCBs, dioxins, PFAS and NORMs.

03

Ground and Waste Water Treatment

Treatment of a wide range of contaminants and complex water treatment and soil vapour extraction.

04

Asset and Resource Recovery

Comprehensive waste and recycling management to contribute to the circular economy to extend the lifecycle of materials.

05

Site Remediation

Site rehabilitation via methods such as bioremediation, containment, decontamination, dewatering, stabilisation, treatment and tracking to disposal of contaminants.

values-bg

Managing PFAS in Site Closure Remediation

Insights

Bioremediation for Closure

Insights

Demolition and recycling phase completed for first major closure project for Rio Tinto at Argyle Diamond Mine, WA.

integrated capability responsible decommissioning

decommissioning closure and asset liability consulting

consulting risk management engineered solutions 3d simulation

and simulation liberty modelling dismantling and asset

dismantling and asset recovery synchronised safety

deconstruction resource recovery and recycling expert delivery

high expert industrial delivery reach consulting

expert delivery high reach explosive induced collapse

collapse specialised contracting decontamination

decontamination cleaning remediation environmental stewards

stewards risk mitigation and management waste disposal

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