Meeting environmental goals through innovation and collaboration.
A condition of the Karuah East Quarry (KEQ) Project Consent was the requirement for all crushers and screens to be enclosed. This condition is generally made as an environmental control to ensure that air-born dust is minimized in the production process.
At KEQ, the noise created from crushing and screening rock was also an environmental consideration with very tight noise level criteria. To meet the criteria, Thearle Engineering was engaged to conduct noise monitoring and determine the most appropriate noise mitigation materials to be used in the construction of the enclosures to ensure compliance.
It was determined that a pre-cast concrete panel building with special noise insulation roofing materials was required to achieve the noise requirement. Hunter Construction Group including Hunter Precast, Hunter Steel, and Hunter Install were commissioned to design and erect the nearly six-storey building. As with most buildings, time was of the essence as the quarry was not able to operate during the construction phase. From design to commissioning, the project was completed to budget, within 10 weeks.
The project met its scope and achieved noise objectives. It can certainly be viewed as a best in class outcome for the quarry.