Industrial Concrete Construction – Jaws Buckets Machine Foundation
This major industrial concrete construction project required Terazzo Concrete Construction to serve as Principal Project Manager for a technically demanding build. Jaws Buckets, a global manufacturer of massive mining equipment, required a new foundation to support a high-precision multi-hole boring machine used on buckets weighing up to 75 tonnes.
Location: Archerfield, Brisbane Role: Principal Project Manager (Design, Manage, Construct)
Project Type: Heavy Industrial Concrete Construction (Zero Tolerance)
Project Overview
A Signature Piece of Complex Infrastructure
Why such structural strength? The machine performs a critical function: boring holes for pivot pins that must align perfectly to function. This requires a foundation with absolute stability.
Even a fraction of a millimetre of movement or vibration during the boring process would compromise the pin alignment, rendering the bucket unserviceable.
Therefore, the foundation had to be designed as a rigid, zero-movement platform capable of absorbing the immense static and dynamic loads of the operation.
This project exemplifies the best of what Terazzo delivers: complex, structurally critical works delivered with complete end-to-end service—from technical design and demolition to precision engineering and finishing.
Industrial Concrete Construction Challenges
Precision in a Live Environment
- Zero Tolerance: The machine foundation required absolute structural rigidity. Any settlement or vibration would compromise the boring accuracy of the high-value mining components.
- Site Constraints: The works were located internally within a fully operational factory with restricted access for heavy earthmoving machinery.
- Geotechnical Complexity: The site presented a high-water table and required deep penetration into the rock base to achieve the necessary load-bearing capacity.
- Strict OHS Compliance: Operations demanded rigorous adherence to Terazzo and Jaws safety standards, including requiring harnesses and a specialised ladder cage for all pit access and works.
Industrial Concrete Construction Solutions
Terazzo managed the entire project lifecycle, coordinating specialist sub-contractors (including surveyors, earthmovers, steel fixers, formworkers and steel fabricators) and executing a complex 8-stage construction methodology.
1. Site Establishment & Demolition
Execution of precision saw cutting to the perimeter of the existing factory slab, followed by the safe removal of concrete to open the worksite.
2. Perimeter Stabilization (Water Table Management)
Before bulk excavation could begin, the pit area required stabilisation. Terazzo installed a perimeter capping beam supported by 41 bored piers (450mm wide x 5m deep). These were drilled 1 metre into the solid rock base and through the water table to secure the excavation walls.
3. Innovative Excavation Logistics
Access from side was insufficient for standard machinery. Terazzo implemented a unique logistical solution: a 10-tonne excavator commenced digging from the perimeter. As the pit deepened, we utilised the factory’s overhead gantry crane to lift the excavator directly into the pit, allowing it to complete bulk earthworks from the inside out.
4. Deep Structural Foundation
Once the pit floor was established, the excavator (operating from within the pit) drilled a further 26 structural bored piers directly beneath the machine footprint. These substantial piers (600mm wide x 4.5m deep) penetrated 1 metre into rock to guarantee immense load-bearing capacity.
5. Heavy Reinforcement (1200mm Thick)
Installation of a massive steel reinforcement cage was completed to form the structural raft. The concrete was poured in two layers to achieve a total thickness of 1200mm, creating a rigid, immovable base.
6. Zero-Tolerance Formwork
Formwork was critical for the central and surrounding walls. These had to be perfectly straight with zero tolerance for deviation to accommodate the lateral movement of the boring machine.
7. Precision Embeds (90 Units)
Terazzo managed the installation of 90 custom-manufactured steel boxes (fabricated and installed by Davis Welding and Fabrication). Working in a three-way partnership with the fabricator and a surveyor, we ensured pin-point elevation and location accuracy for every single box prior to concreting. These boxes accommodate the adjustment bolts for the heavy steel plates upon which the buckets sit while being bored, ensuring the workpiece remains perfectly level and secure.
8. Final Placement & Finishing
The project concluded with progressive concrete placement and finishing, including the complex interior walls which were constructed last.
The Outcome
Terazzo delivered a flawless, high-performance foundation that met the client’s rigorous engineering standards. By managing the design, technical risks, and complex logistics in-house, we provided Jaws Buckets with the structural certainty required to operate their high-precision machinery for years to come.
This successful delivery reinforces Terazzo’s reputation as a leader in heavy industrial concrete construction for the manufacturing and mining sectors.
Ready to Discuss Your Project?
Don’t risk your high-value machinery on standard concrete work. Contact Terazzo Concrete Construction today for a technical consultation. We deliver the absolute precision, safety, and structural integrity your heavy industrial operations demand.
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FAQ
What defines complex industrial concrete construction? Complex industrial concrete construction involves high-specification engineering designed to support extreme loads (e.g., 75 tonnes) and withstand heavy vibration. Unlike standard slabs, these projects require deep bored piers, massive reinforcement (often exceeding 1000mm thickness), and zero-tolerance precision for machinery alignment.
Why do machine foundations require zero tolerance? Zero tolerance is critical for high-precision machinery, such as boring mills. Any settlement, movement, or vibration in the concrete foundation will misalign the machine tools, resulting in defective products. A rigid, immovable foundation ensures the machine operates with micron-level accuracy.
How do you manage deep excavation inside an operational factory? Excavating inside a live factory prioritises operational safety and minimal business disruption. We implement comprehensive Site Management Plans, isolate work zones with hoardings, and utilise strict dust and noise suppression techniques. All works are scheduled to ensure the facility continues to operate safely, with crew adhering to rigorous OHS standards including confined space protocols where necessary.
What is the role of bored piers in industrial foundations? Bored piers are essential for stabilising foundations in poor soil conditions or high water tables. They transfer the immense static and dynamic loads of the machinery past the unstable topsoil and directly into the solid rock base, ensuring long-term structural integrity.