In December 2014 McMahon Services was commissioned to demolish and remove above ground storage tanks and asbestos clad buildings at a mothballed terminal site, located in botany, New South Wales.
It had been used to store petroleum products before it was decommissioned in 2012. McMahon Services was contracted for the demolition works which entailed the removal of asbestos, redundant electrical services and demolition of a number of structures, including above ground storage tanks and buildings.
Prior to the building demolition, the team carried out extensive asbestos and hazardous waste removal works including removal and disposal of significant volumes of asbestos cement roof sheeting. Demolition of the ground slab level of eight buildings then commenced, concluding with the demolition and removal of 33 above ground tanks and above ground pipework. McMahon Services disposed of all building rubble, general rubbish and concrete rubble off-site.
Throughout the nine month program, McMahon Services provided all in-house supervision, labour, plant and equipment to carry out asbestos removal and demolition works at the former Terminal. The works were carried out in strict accordance with the client’s demolition guidelines and management system requirements, with detailed Work Method Statements and Critical Crane Lift Plans developed and presented for approval prior to the commencement of works.
The demolition of 33 above-ground storage tanks resulted in the processing of approximately 2,000 tonnes of scrap steel, and a specific demolition sequence had to be developed to accommodate both the conical and floating roofs of these tanks.
The tank demolition was undertaken by a Komatsu PC1250 and PC450 excavator featuring a Bis-Alloy Cutting Tyne. A Komatsu PC450 excavator, fitted with a mechanical grapple, was used to process tank scrap steel.
