Airports
Qty3 – Melbourne, Sydney, Brisbane
Performing floor sawing to a depth of 550mm and core drilling activities on a high MPA concrete runway involves a meticulous process. The task encompasses an extensive number of 260mm–3–400mm-diameter holes with depths ranging from 250mm to 300mm. The drilling process averages 10–15 minutes per hole, emphasising both speed and precision.
To ensure safety, the operation strictly adheres to safety procedures. Moreover, it complies with airside security protocols, taking into account access to taxiways and live runways. This requires a careful balance between operational efficiency and safety considerations.
The project demands efficiency not only in quantity but also in maintaining work scopes across both vertical and horizontal surfaces during core drilling. The challenge is to achieve consistency in drilling depths and diameters while meeting stringent specifications.
In addition to the complexity of the task, there is a need to maintain a high level of accuracy. The operation must achieve and sustain remarkable precision within a 1.5-mm tolerance over a substantial distance of 4 km. This precision is crucial for the integrity and functionality of the concrete runway.
In summary, the floor sawing and core drilling activities involve a high level of technical skill, adherence to safety protocols, compliance with aviation security measures, and a commitment to precision across a vast expanse of the concrete runway.
Bridges
In Victoria, encompassing city and country regions, notable locations such as West Gate Victoria, Mac-Gibson, MacRobertson, SE Motorway elevated structures, Burnley Tunnel, and Phillip Island collectively feature an extensive network of over 10,000 holes. To efficiently handle various tasks in these locations, specialized equipment has been meticulously engineered, catering to specific work categories.
One crucial aspect involves core drilling, where precision is paramount. This includes producing a sample with an accuracy requirement involving the creation of 64 blind holes for each core. These blind holes must conform to specific angles along both the vertical and horizontal axes. Additionally, the equipment is adept at coring 100mm solid steel plates and various 38/24mm diameter rebars at depths of 1.8 meters. Maintaining precise angles of 23 degrees and 6.5 degrees on the respective axes from the start to the end of the core is crucial. Each cored hole is rigorously confirmed to have less than 1 mm of deflection. Furthermore, all holes undergo a triple-checking process and receive approval from various government bodies and two senior bridge engineers.
For site-specific requirements, the equipment allows the recovery of over 100 vertical core samples with tolerance levels of 1.5–2 mm over a depth of 8 meters. These are blind holes, not through holes. In addition, the equipment is capable of chainsawing and floor sawing at depths of 700mm with an accuracy level of within 2 mm.
In the context of bridge strengthening, the equipment is versatile enough to handle core drilling of group patterns, accommodating tolerances of 1.5–2 mm. This comprehensive capability ensures effective and precise work in diverse scenarios across Victoria’s urban and rural landscapes.
Trams Track Replacement Programs
The content describes various aspects of rail and tram track replacement programmes in Victoria, covering emergency and scheduled works in suburban districts and country regions. The activities include core drilling and track replacement works, with a focus on specific details such as dimensions, depths, and access limitations. Additionally, there is mention of floor sawing in the central business district (CBD) of Victoria and various minor repair works at multiple locations. The use of specialized equipment, including custom 45-hp saws, is highlighted for high production, aiming to cut specific lengths and depths of asphalt and rail within defined parameters. The entire process is executed with precision, ensuring minimal deflection and adherence to specific distance and time constraints. The team also utilises self-provided water tanks and pumps during these operations. Overall, the content outlines the technical details and logistical considerations involved in rail and tram track replacement projects in Victoria.
Mark has 40 years of experience in Concrete Cutting in Victoria.
MMSR (Melbourne Sewer Replacement)
Qty 4 cuts,
1st time ever successfully achieved world-wide, wire sawing of 100mm thick steel-lined sewer without an explosion at depths of 20 m with top-notch equipment like core drills and special chainsaws, is designed to easily cut through 100-mm-thick steel or concrete-lined pipes with a 1.5-metre diametre underground.
Underwater Chainsawing
A specialised 25-hp chainsaw was utilised for the cutting of approximately 10 meters by 900mm deep, with various other depths of cutting on the vertical and horizontal planes. Professional divers were trained on site, where at times there was zero visibility, which complemented the equipment design. A zero rate of incidents was recognised.
Communications
Production was maintained for more than 2 years. Floor sawing and core drilling equipment were designed for extreme limited access to suit the cone-shaped pit ends and adjoining P3 pits, and procedures were designed to suit cable protection while floor sawing.
Water storage and water reticulation
Floor sawing of major water supply lines and suburban/domestic reticulation; work scopes for various major dam retaining structures throughout Victoria; Floor sawing; Core drilling; Emergencies and scheduled works of deep floor sawing, large bore, and small deep bore core drilling up to 8 metres deep
Fuel Stations
Darwin, Northern Territory Groote Eylandt, Floor Sawing, including procedures designed in 1995, to remove unsightly over-cuts on corners with particular attention to safety protocols while cutting in leaking fuel stations
Food industry and cold storage
Known brand names and major food suppliers, WCC can and continues to provide a powerful 40 HP, 3 PH electric floor saw to depths of 550mm deep in extreme frozen and slip-hazard environments.