Demolition - Liquor Purification Structure
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In June 2024, Liberty Industrial, in collaboration with Applied Science International (ASI), successfully demolished the Liquor Purification Structure in Area 663 at the Gove Refinery in Australia. The proposed demolition scenario achieved its objectives, resulting in the structure collapsing in the intended direction. This successful outcome highlights the effectiveness of their meticulous planning and execution.
The Liquor Purification Structure comprises two symmetrical towers connected by link bridges. Each tower is 47.9 meters high and supports significant mechanical equipment over 13 uneven floors. The base dimensions of each tower measure approximately 13.4 by 14.8 meters. The considerable size and complexity of the structure posed significant challenges.
Liberty Industrial engaged ASI to perform a detailed demolition analysis of the Liquor Purification Structure. ASI employed their proprietary Extreme Loading for Structures (ELS) software to develop a detailed numerical model. This model was crucial for analyzing the structural behavior during the planned demolition, guiding the formulation of the demolition strategy, and ensuring the structure collapsed as intended.
The ELS software, employing the Applied Element Method (AEM), allowed for comprehensive analysis from elastic deformation to yielding and complete collapse. This modeling capability enabled ASI to provide precise recommendations aimed at optimizing the demolition process and mitigating potential hazards effectively.
The proposed demolition strategy involved the implementation of hinged supports, the mechanical removal of specific girders and braces on the first and second floors, and conducting controlled blasting of selected columns. ASI’s analysis predicted a maximum debris height of 16.2 meters, confirming the structure would collapse as planned.
ASI’s analysis validated the effectiveness of the proposed demolition scenario for the Liquor Purification Structure. The collaboration between Liberty Industrial and ASI, leveraging advanced engineering tools like ELS, ensured a planned and controlled collapse. This successful demolition underscores a commitment to safety, precision, and innovative practices in managing complex demolition projects.
